TY  - CONF
AU  - Dragičević, Vesna
AU  - Simic, Milena
AU  - Šenk, Milena
AU  - Pavlovic, Natalija
AU  - Kovačević, Dušan
AU  - Mladenović Drinić, Snežana
AU  - Brankov, Milan
PY  - 2023
UR  - http://rik.mrizp.rs/handle/123456789/1305
AB  - Savremena poljoprivredna proizvodnja se suočava sa progresivnim smanjenjem obradivih površina, zagađenjem zemljišta i voda, ekstremnom fluktuacijom meteoroloških uslova, nedostatkom đubriva, kao i enormnim skokom cena istih. Upotreba 
mineralnih đubriva dugoročno dovodi do iscrpljivanja zemljišta mikro-hranivima 
i smanjenja plodnosti i organske materije. Danas sve više raste potreba za primenom 
drugačijih izvora hraniva koji bi u potpunosti zadovoljili potrebe useva i povoljno se odrazili na plodnost zemljišta. Stajnjak je jedan od najznačajnih đubriva koji 
utiče na plodnost zemljišta, ali nedostatak stočnog fonda uslovljava njegovu (ne)
raspoloživost. Stoga su razvijeni održivi sistemi đubrenja, kao što su zelenišna 
đubriva, malč, kompost i biohar, koji povoljno utiču na kvalitet zemljišta i na 
prinos gajenih biljaka, posebno kada se koriste duži niz godina. Bio-đubriva se sas toje od korisnih mikroorganizama i predstavljaju jedinstvenu praksu za poboljšanje 
plodnosti zemljišta i prinosa useva. Pojedinačni mikroorganizmi, kao i njihovi 
konzorcijumi, mogu da ubrzaju razlaganje žetvenih ostataka, povećaju pristupačnost 
makro- i mikro-elemenata iz zemljišta i promovišu rast i fitnes biljaka sintetišući fitohormone i stimulatore. Pokazalo se da organska i bio-đubriva, posebno pri dugotrajnoj primeni, mogu da održe, kao i da povrate plodnost erodiranim 
zemljištima. Takođe, njihova upotreba se povoljno odražava i na rast i potencijal 
prinosa gajenih biljka, obezbeđujući im sve potrebne makro- i mikro-elemente, kao i 
brojne druge protektivne i stimulativne supstance.
AB  - Modern agricultural production is faced with a progressive reduction of arable land, soil 
and water pollution, extreme fluctuations in meteorological conditions, a lack of fertilizers, as 
well as an enormous jump in their prices. The use of mineral fertilizers in the long term leads 
to depletion of the soil with micro-nutrients and a decrease in fertility and organic matter. 
Today, the need for the application of different sources of nutrients that would fully satisfy 
the needs of crops and have a favorable effect on soil fertility is growing. Manure is one of the 
most important fertilizers that affects soil fertility, but the lack of livestock determines its (una)
availability. Therefore, sustainable fertilization systems have been developed, such as green 
manures, mulch, compost and biochar, which have a favorable effect on the quality of the soil 
and the yield of cultivated plants, especially when used for many years. Bio-fertilizers consist 
of beneficial microorganisms and are a unique practice for improving soil fertility and crop 
yields. Individual microorganisms, as well as their consortia, can accelerate the decomposition 
of crop residues, increase the availability of macro- and micro-elements from the soil, and 
promote plant growth and fitness by synthesizing phytohormones and stimulators. It has been 
shown that organic and bio-fertilizers, especially with long-term application, can maintain 
and restore the fertility of eroded soils. Also, their use has a favorable effect on the growth 
and yield potential of cultivated plants, providing them with all the necessary macro- and 
micro-elements, as well as numerous other protective and stimulating substances.
PB  - Beograd : Akademija inženjerskih nauka Srbije - AINS, Odeljenje biotehničkih nauka
C3  - Naučni skup "Kako oživeti i osnažiti brdsko-planinska područija naše zemlje", Zlatibor, 21-22.09.2023. godine - Zbornik radova
T1  - Prirodni resursi kao izvor hraniva – uloga organskih i bio-đubriva u ishrani biljaka
T1  - Natural Resources as a Source Of Nutrients – The Role of Organic and Bio-Fertilizers in Plant Nutrition
SP  - 66
EP  - 78
UR  - https://hdl.handle.net/21.15107/rcub_rik_1305
ER  - 

@conference{
author = "Dragičević, Vesna and Simic, Milena and Šenk, Milena and Pavlovic, Natalija and Kovačević, Dušan and Mladenović Drinić, Snežana and Brankov, Milan",
year = "2023",
abstract = "Savremena poljoprivredna proizvodnja se suočava sa progresivnim smanjenjem obradivih površina, zagađenjem zemljišta i voda, ekstremnom fluktuacijom meteoroloških uslova, nedostatkom đubriva, kao i enormnim skokom cena istih. Upotreba 
mineralnih đubriva dugoročno dovodi do iscrpljivanja zemljišta mikro-hranivima 
i smanjenja plodnosti i organske materije. Danas sve više raste potreba za primenom 
drugačijih izvora hraniva koji bi u potpunosti zadovoljili potrebe useva i povoljno se odrazili na plodnost zemljišta. Stajnjak je jedan od najznačajnih đubriva koji 
utiče na plodnost zemljišta, ali nedostatak stočnog fonda uslovljava njegovu (ne)
raspoloživost. Stoga su razvijeni održivi sistemi đubrenja, kao što su zelenišna 
đubriva, malč, kompost i biohar, koji povoljno utiču na kvalitet zemljišta i na 
prinos gajenih biljaka, posebno kada se koriste duži niz godina. Bio-đubriva se sas toje od korisnih mikroorganizama i predstavljaju jedinstvenu praksu za poboljšanje 
plodnosti zemljišta i prinosa useva. Pojedinačni mikroorganizmi, kao i njihovi 
konzorcijumi, mogu da ubrzaju razlaganje žetvenih ostataka, povećaju pristupačnost 
makro- i mikro-elemenata iz zemljišta i promovišu rast i fitnes biljaka sintetišući fitohormone i stimulatore. Pokazalo se da organska i bio-đubriva, posebno pri dugotrajnoj primeni, mogu da održe, kao i da povrate plodnost erodiranim 
zemljištima. Takođe, njihova upotreba se povoljno odražava i na rast i potencijal 
prinosa gajenih biljka, obezbeđujući im sve potrebne makro- i mikro-elemente, kao i 
brojne druge protektivne i stimulativne supstance., Modern agricultural production is faced with a progressive reduction of arable land, soil 
and water pollution, extreme fluctuations in meteorological conditions, a lack of fertilizers, as 
well as an enormous jump in their prices. The use of mineral fertilizers in the long term leads 
to depletion of the soil with micro-nutrients and a decrease in fertility and organic matter. 
Today, the need for the application of different sources of nutrients that would fully satisfy 
the needs of crops and have a favorable effect on soil fertility is growing. Manure is one of the 
most important fertilizers that affects soil fertility, but the lack of livestock determines its (una)
availability. Therefore, sustainable fertilization systems have been developed, such as green 
manures, mulch, compost and biochar, which have a favorable effect on the quality of the soil 
and the yield of cultivated plants, especially when used for many years. Bio-fertilizers consist 
of beneficial microorganisms and are a unique practice for improving soil fertility and crop 
yields. Individual microorganisms, as well as their consortia, can accelerate the decomposition 
of crop residues, increase the availability of macro- and micro-elements from the soil, and 
promote plant growth and fitness by synthesizing phytohormones and stimulators. It has been 
shown that organic and bio-fertilizers, especially with long-term application, can maintain 
and restore the fertility of eroded soils. Also, their use has a favorable effect on the growth 
and yield potential of cultivated plants, providing them with all the necessary macro- and 
micro-elements, as well as numerous other protective and stimulating substances.",
publisher = "Beograd : Akademija inženjerskih nauka Srbije - AINS, Odeljenje biotehničkih nauka",
journal = "Naučni skup "Kako oživeti i osnažiti brdsko-planinska područija naše zemlje", Zlatibor, 21-22.09.2023. godine - Zbornik radova",
title = "Prirodni resursi kao izvor hraniva – uloga organskih i bio-đubriva u ishrani biljaka, Natural Resources as a Source Of Nutrients – The Role of Organic and Bio-Fertilizers in Plant Nutrition",
pages = "66-78",
url = "https://hdl.handle.net/21.15107/rcub_rik_1305"
}

Dragičević, V., Simic, M., Šenk, M., Pavlovic, N., Kovačević, D., Mladenović Drinić, S.,& Brankov, M.. (2023). Prirodni resursi kao izvor hraniva – uloga organskih i bio-đubriva u ishrani biljaka. in Naučni skup "Kako oživeti i osnažiti brdsko-planinska područija naše zemlje", Zlatibor, 21-22.09.2023. godine - Zbornik radova
Beograd : Akademija inženjerskih nauka Srbije - AINS, Odeljenje biotehničkih nauka., 66-78.
https://hdl.handle.net/21.15107/rcub_rik_1305

Dragičević V, Simic M, Šenk M, Pavlovic N, Kovačević D, Mladenović Drinić S, Brankov M. Prirodni resursi kao izvor hraniva – uloga organskih i bio-đubriva u ishrani biljaka. in Naučni skup "Kako oživeti i osnažiti brdsko-planinska područija naše zemlje", Zlatibor, 21-22.09.2023. godine - Zbornik radova. 2023;:66-78.
https://hdl.handle.net/21.15107/rcub_rik_1305 .

Dragičević, Vesna, Simic, Milena, Šenk, Milena, Pavlovic, Natalija, Kovačević, Dušan, Mladenović Drinić, Snežana, Brankov, Milan, "Prirodni resursi kao izvor hraniva – uloga organskih i bio-đubriva u ishrani biljaka" in Naučni skup "Kako oživeti i osnažiti brdsko-planinska područija naše zemlje", Zlatibor, 21-22.09.2023. godine - Zbornik radova (2023):66-78,
https://hdl.handle.net/21.15107/rcub_rik_1305 .

TY  - CONF
AU  - Dolijanović, Željko
AU  - Kovačević, Dušan
AU  - Oljača, Snežana
AU  - Simić, Milena
AU  - Moravcevic, Djordje
AU  - Seremesic, Srdjan
PY  - 2020
UR  - http://rik.mrizp.rs/handle/123456789/1004
AB  - To achieve efficient weed control through cover cropping, the plant species chosen is very 
important. Growing different legume cover crop (CC) species single and in mixtures with 
grass may increase the number of provided ecosystem services, including reliable suppression 
of weeds. We conducted an experiment using randomized complete block design with four 
replications in 2014/15 - 2015/16 growing seasons, at the Experimental Field of Maize 
Research Institute in Zemun Polje (Serbia). Single cover crops were considered as the main 
factor (common vetch and field pea), mixtures common vetch and field pea with winter oats
and traditional variant, without coverage on biomass. Green biomass of the cover crops was 
incorporated in the soil, and treatments with favorable establishment and above-average 
biomass yields tended to suppress weeds by showing lower weed dry matter and weed 
numbers. The weediness of sweet maize was much higher in the second year of investigation. 
The number of weed species, fresh and dry biomass of weeds were the least in the variants 
with mixtures, while the number of plants per specieswas the lowest in the single cover crops. 
So, mixtures were not as effective as legume single sown CCs, species combinations 
increased resilience against adverse weather conditions, an advantage to achieving efficient 
weed control over a long-term period. The statistically significant difference in the fresh 
biomass of weeds obtained in the control variant (540.46 and 385.88 g) was especially 
pronounced compared to the variants with single cover crops (391.63 and 486.53 g) and their 
mixtures (260.00 and 250.78 g), indicating a higher proportion of perennial weed species.
PB  - Republic of Srpska, Bosnia : University of East Sarajevo, Faculty of Agriculture
C3  - 11. International Scientific Agriculture Symposium “AGROSYM 2020”, Jahorina, 8-9.10.2020. - Book of proceedings
T1  - Weed control ability in sweet maize of single sown legume cover crops compared to their mixtures
SP  - 139
EP  - 146
UR  - https://hdl.handle.net/21.15107/rcub_rik_1004
ER  - 

@conference{
author = "Dolijanović, Željko and Kovačević, Dušan and Oljača, Snežana and Simić, Milena and Moravcevic, Djordje and Seremesic, Srdjan",
year = "2020",
abstract = "To achieve efficient weed control through cover cropping, the plant species chosen is very 
important. Growing different legume cover crop (CC) species single and in mixtures with 
grass may increase the number of provided ecosystem services, including reliable suppression 
of weeds. We conducted an experiment using randomized complete block design with four 
replications in 2014/15 - 2015/16 growing seasons, at the Experimental Field of Maize 
Research Institute in Zemun Polje (Serbia). Single cover crops were considered as the main 
factor (common vetch and field pea), mixtures common vetch and field pea with winter oats
and traditional variant, without coverage on biomass. Green biomass of the cover crops was 
incorporated in the soil, and treatments with favorable establishment and above-average 
biomass yields tended to suppress weeds by showing lower weed dry matter and weed 
numbers. The weediness of sweet maize was much higher in the second year of investigation. 
The number of weed species, fresh and dry biomass of weeds were the least in the variants 
with mixtures, while the number of plants per specieswas the lowest in the single cover crops. 
So, mixtures were not as effective as legume single sown CCs, species combinations 
increased resilience against adverse weather conditions, an advantage to achieving efficient 
weed control over a long-term period. The statistically significant difference in the fresh 
biomass of weeds obtained in the control variant (540.46 and 385.88 g) was especially 
pronounced compared to the variants with single cover crops (391.63 and 486.53 g) and their 
mixtures (260.00 and 250.78 g), indicating a higher proportion of perennial weed species.",
publisher = "Republic of Srpska, Bosnia : University of East Sarajevo, Faculty of Agriculture",
journal = "11. International Scientific Agriculture Symposium “AGROSYM 2020”, Jahorina, 8-9.10.2020. - Book of proceedings",
title = "Weed control ability in sweet maize of single sown legume cover crops compared to their mixtures",
pages = "139-146",
url = "https://hdl.handle.net/21.15107/rcub_rik_1004"
}

Dolijanović, Ž., Kovačević, D., Oljača, S., Simić, M., Moravcevic, D.,& Seremesic, S.. (2020). Weed control ability in sweet maize of single sown legume cover crops compared to their mixtures. in 11. International Scientific Agriculture Symposium “AGROSYM 2020”, Jahorina, 8-9.10.2020. - Book of proceedings
Republic of Srpska, Bosnia : University of East Sarajevo, Faculty of Agriculture., 139-146.
https://hdl.handle.net/21.15107/rcub_rik_1004

Dolijanović Ž, Kovačević D, Oljača S, Simić M, Moravcevic D, Seremesic S. Weed control ability in sweet maize of single sown legume cover crops compared to their mixtures. in 11. International Scientific Agriculture Symposium “AGROSYM 2020”, Jahorina, 8-9.10.2020. - Book of proceedings. 2020;:139-146.
https://hdl.handle.net/21.15107/rcub_rik_1004 .

Dolijanović, Željko, Kovačević, Dušan, Oljača, Snežana, Simić, Milena, Moravcevic, Djordje, Seremesic, Srdjan, "Weed control ability in sweet maize of single sown legume cover crops compared to their mixtures" in 11. International Scientific Agriculture Symposium “AGROSYM 2020”, Jahorina, 8-9.10.2020. - Book of proceedings (2020):139-146,
https://hdl.handle.net/21.15107/rcub_rik_1004 .

TY  - CONF
AU  - Simić, Milena
AU  - Dragičević, Vesna
AU  - Kresović, Branka
AU  - Kovačević, Dušan
AU  - Dolijanović, Željko
AU  - Brankov, Milan
PY  - 2019
UR  - http://rik.mrizp.rs/handle/123456789/1009
AB  - Soil tillage system is a basic in maize crop production. Under variable climatic conditions and 
frequent occurrences of dry years, soil tillage adjusted to the soil type, agro-ecological 
conditions and the crop, can contribute to the achievement of the maximum yield potential. 
Systems of reduced tillage, particularly direct sowing, have been widely used in Europe. 
Under agro-ecological conditions of central Serbia, the highest maize yields have been 
achieved by using conventional soil tillage with 20-25-cm deep autumn ploughing and a
single pass land preparation in spring as 10-12-cm shallow tillage. In the Maize Research 
Institute, Zemun Polje, the long-term experiment was conducted (2005-2016) in order to test 
the efficacy of zero-, reduced and conventional tillage together with the application of 
different rates of mineral fertilisers in maize cultivation. The experiment was performed under 
rainfed and irrigation conditions. The data were processed by four factorials ANOVA and 
differences were analysed by the LSD-test. Based on the precipitation sum in the investigated 
period, three years were extremely dry, four were moderately dry and five were favourable for 
maize production. Under irrigation conditions, the 12-year maize grain yield average was
higher by 2.1 t ha-1
than under rainfed conditions. Under rainfed conditions, differences 
between conventional and reduced or zero-tillage were 1.7, and 1.3 t ha-1
, respectively, while 
under irrigated conditions conventional tillage was more productive by 1.4 t ha-1
than reduced 
and zero-tillage, respectively. In some dry years, such 2012, the maize grain yield was higher 
under conditions of reduced tillage than conventional tillage.
PB  - Republic of Srpska, Bosnia : University of East Sarajevo, Faculty of agriculture
C3  - 10. International scientific agriculture symposium “AGROSYM 2019”, Jahorina, 3-6.10.2019. - Book of abstracts
T1  - The effectiveness of soil tillage systems in maize cultivation under variable meteorological conditions of Central Serbia
SP  - 574
EP  - 579
UR  - https://hdl.handle.net/21.15107/rcub_rik_1009
ER  - 

@conference{
author = "Simić, Milena and Dragičević, Vesna and Kresović, Branka and Kovačević, Dušan and Dolijanović, Željko and Brankov, Milan",
year = "2019",
abstract = "Soil tillage system is a basic in maize crop production. Under variable climatic conditions and 
frequent occurrences of dry years, soil tillage adjusted to the soil type, agro-ecological 
conditions and the crop, can contribute to the achievement of the maximum yield potential. 
Systems of reduced tillage, particularly direct sowing, have been widely used in Europe. 
Under agro-ecological conditions of central Serbia, the highest maize yields have been 
achieved by using conventional soil tillage with 20-25-cm deep autumn ploughing and a
single pass land preparation in spring as 10-12-cm shallow tillage. In the Maize Research 
Institute, Zemun Polje, the long-term experiment was conducted (2005-2016) in order to test 
the efficacy of zero-, reduced and conventional tillage together with the application of 
different rates of mineral fertilisers in maize cultivation. The experiment was performed under 
rainfed and irrigation conditions. The data were processed by four factorials ANOVA and 
differences were analysed by the LSD-test. Based on the precipitation sum in the investigated 
period, three years were extremely dry, four were moderately dry and five were favourable for 
maize production. Under irrigation conditions, the 12-year maize grain yield average was
higher by 2.1 t ha-1
than under rainfed conditions. Under rainfed conditions, differences 
between conventional and reduced or zero-tillage were 1.7, and 1.3 t ha-1
, respectively, while 
under irrigated conditions conventional tillage was more productive by 1.4 t ha-1
than reduced 
and zero-tillage, respectively. In some dry years, such 2012, the maize grain yield was higher 
under conditions of reduced tillage than conventional tillage.",
publisher = "Republic of Srpska, Bosnia : University of East Sarajevo, Faculty of agriculture",
journal = "10. International scientific agriculture symposium “AGROSYM 2019”, Jahorina, 3-6.10.2019. - Book of abstracts",
title = "The effectiveness of soil tillage systems in maize cultivation under variable meteorological conditions of Central Serbia",
pages = "574-579",
url = "https://hdl.handle.net/21.15107/rcub_rik_1009"
}

Simić, M., Dragičević, V., Kresović, B., Kovačević, D., Dolijanović, Ž.,& Brankov, M.. (2019). The effectiveness of soil tillage systems in maize cultivation under variable meteorological conditions of Central Serbia. in 10. International scientific agriculture symposium “AGROSYM 2019”, Jahorina, 3-6.10.2019. - Book of abstracts
Republic of Srpska, Bosnia : University of East Sarajevo, Faculty of agriculture., 574-579.
https://hdl.handle.net/21.15107/rcub_rik_1009

Simić M, Dragičević V, Kresović B, Kovačević D, Dolijanović Ž, Brankov M. The effectiveness of soil tillage systems in maize cultivation under variable meteorological conditions of Central Serbia. in 10. International scientific agriculture symposium “AGROSYM 2019”, Jahorina, 3-6.10.2019. - Book of abstracts. 2019;:574-579.
https://hdl.handle.net/21.15107/rcub_rik_1009 .

Simić, Milena, Dragičević, Vesna, Kresović, Branka, Kovačević, Dušan, Dolijanović, Željko, Brankov, Milan, "The effectiveness of soil tillage systems in maize cultivation under variable meteorological conditions of Central Serbia" in 10. International scientific agriculture symposium “AGROSYM 2019”, Jahorina, 3-6.10.2019. - Book of abstracts (2019):574-579,
https://hdl.handle.net/21.15107/rcub_rik_1009 .

TY  - PAT
AU  - Simić, Milena
AU  - Dolijanović, Željko
AU  - Dragičević, Vesna
AU  - Kresović, Branka
AU  - Kovačević, Dušan
AU  - Brankov, Milan
PY  - 2019
UR  - http://rik.mrizp.rs/handle/123456789/1035
AB  - Gajenje pokrovnih useva u održivim i organskim sistemima poljoprivredne proizvodnje nema alternativu. Povećanjem frekvencije useva i pokrovnosti zemljišta ostvaruje se pozitivan uticaj na funkcionisanje agroekosistema kroz održanje ekološke ravnoteže odnosno poboljšano kruženje materije i proticanje energije. Povećava se stabilnost i održivost agroekosistema odnosno agroekosistemi se po osobinama približavaju prirodnim ekosistemima.
Smanjena upotreba mineralnih, posebno azotnih đubriva i pesticida pozitivno utiče na stanje zemljišta i useva. Manji su gubici azota ispiranjem i isparavanjem, manja je mogućnost zakišeljavanja zemljišta, zagađenja teškim metalima, kako zemljišta, tako i podzemnih i površinskih voda. Jedan od važnih problema obradivih zemljišta jeste smanjen sadržaj organske materije. Povećan pokrovnost zemljišta, sa većim učešćem leguminoza je siguran put održanju, pa i poboljšanju sadržaja organske materije, poboljšanju strukture i drugih osobina zemljišta a sve to dovodi do zaštite zemljišta od degradacije, posebno od erozije vodom i vetrom. Po navedenim rezultatima bolji je odnos hranljivih materija u semenu kokičara, što pozitivno utiče na zdravstvenu bezbednost semena i proizvoda od semena.
Uloga pokrovnih useva u čuvanju vlage iz zemljišta tokom zimskih meseci i stavljanje na raspolaganje glavnom usevu u momentu kada je najpotrebnija (u vreme setve i nicanja) je od ogromnog značaja. Sve češće u našim proizvodnim rejonima u proleće ulazimo sa nedostatkom vlage u zemljištu, što ranije nije bio takav slučaj.
Sa agronomskog stanovišta, gajenje pokrovnih useva pozitivno je uticalo na zakorovljenost useva kukuruza kokičara. Manji je broj vrsta, jedinki korova i manja je sveža masa korova po jedinici površine u odnosu na konvencionalni način gajenja. Smanjena zakorovljenost, pored svih ostalih faktora, je važan činilac povećanja prinosa zrna, posebno u godinama sa nedostatkom padavina, kakvih će, po pretpostavkama naučne i stručne javnosti, u budućnosti biti sve više.
PB  - Beograd : Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije
T2  - Broj tehničkog rešenja: 439
T1  - Uvođenje pokrovnih useva u sistem gajenja kukuruza kokičara
SP  - 1
EP  - 20
UR  - https://hdl.handle.net/21.15107/rcub_rik_1035
ER  - 

@misc{
author = "Simić, Milena and Dolijanović, Željko and Dragičević, Vesna and Kresović, Branka and Kovačević, Dušan and Brankov, Milan",
year = "2019",
abstract = "Gajenje pokrovnih useva u održivim i organskim sistemima poljoprivredne proizvodnje nema alternativu. Povećanjem frekvencije useva i pokrovnosti zemljišta ostvaruje se pozitivan uticaj na funkcionisanje agroekosistema kroz održanje ekološke ravnoteže odnosno poboljšano kruženje materije i proticanje energije. Povećava se stabilnost i održivost agroekosistema odnosno agroekosistemi se po osobinama približavaju prirodnim ekosistemima.
Smanjena upotreba mineralnih, posebno azotnih đubriva i pesticida pozitivno utiče na stanje zemljišta i useva. Manji su gubici azota ispiranjem i isparavanjem, manja je mogućnost zakišeljavanja zemljišta, zagađenja teškim metalima, kako zemljišta, tako i podzemnih i površinskih voda. Jedan od važnih problema obradivih zemljišta jeste smanjen sadržaj organske materije. Povećan pokrovnost zemljišta, sa većim učešćem leguminoza je siguran put održanju, pa i poboljšanju sadržaja organske materije, poboljšanju strukture i drugih osobina zemljišta a sve to dovodi do zaštite zemljišta od degradacije, posebno od erozije vodom i vetrom. Po navedenim rezultatima bolji je odnos hranljivih materija u semenu kokičara, što pozitivno utiče na zdravstvenu bezbednost semena i proizvoda od semena.
Uloga pokrovnih useva u čuvanju vlage iz zemljišta tokom zimskih meseci i stavljanje na raspolaganje glavnom usevu u momentu kada je najpotrebnija (u vreme setve i nicanja) je od ogromnog značaja. Sve češće u našim proizvodnim rejonima u proleće ulazimo sa nedostatkom vlage u zemljištu, što ranije nije bio takav slučaj.
Sa agronomskog stanovišta, gajenje pokrovnih useva pozitivno je uticalo na zakorovljenost useva kukuruza kokičara. Manji je broj vrsta, jedinki korova i manja je sveža masa korova po jedinici površine u odnosu na konvencionalni način gajenja. Smanjena zakorovljenost, pored svih ostalih faktora, je važan činilac povećanja prinosa zrna, posebno u godinama sa nedostatkom padavina, kakvih će, po pretpostavkama naučne i stručne javnosti, u budućnosti biti sve više.",
publisher = "Beograd : Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije",
journal = "Broj tehničkog rešenja: 439",
title = "Uvođenje pokrovnih useva u sistem gajenja kukuruza kokičara",
pages = "1-20",
url = "https://hdl.handle.net/21.15107/rcub_rik_1035"
}

Simić, M., Dolijanović, Ž., Dragičević, V., Kresović, B., Kovačević, D.,& Brankov, M.. (2019). Uvođenje pokrovnih useva u sistem gajenja kukuruza kokičara. in Broj tehničkog rešenja: 439
Beograd : Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije., 1-20.
https://hdl.handle.net/21.15107/rcub_rik_1035

Simić M, Dolijanović Ž, Dragičević V, Kresović B, Kovačević D, Brankov M. Uvođenje pokrovnih useva u sistem gajenja kukuruza kokičara. in Broj tehničkog rešenja: 439. 2019;:1-20.
https://hdl.handle.net/21.15107/rcub_rik_1035 .

Simić, Milena, Dolijanović, Željko, Dragičević, Vesna, Kresović, Branka, Kovačević, Dušan, Brankov, Milan, "Uvođenje pokrovnih useva u sistem gajenja kukuruza kokičara" in Broj tehničkog rešenja: 439 (2019):1-20,
https://hdl.handle.net/21.15107/rcub_rik_1035 .

TY  - CONF
AU  - Dolijanović, Željko
AU  - Kovačević, Dušan
AU  - Oljača, Snežana
AU  - Simić, Milena
AU  - Jovovic, Zoran
PY  - 2019
UR  - http://rik.mrizp.rs/handle/123456789/1033
AB  - U savremenim konceptima razvoja konvencionalne poljoprivrede uloga i značaj plodoreda su nezamenljivi odnosno, prelazak sa monokulture i dvopoljnog na tropoljni plodored, uvođenjem useva soje, su neminovni sa aspekta povećanja produktivnosti. Soja je odličan predusev većini ratarskih biljaka, kako sa aspekta obezbeđivanja jednog dela azota azotofiksacijom, tako i sa aspekta poboljšanja strukture zemljišta i smanjenja zakorovljenosti. Ne treba zanemariti činjenicu održanja i povećanja sadržaja organske materije u zemljištu što je značajan indikator potencijalne plodnosti zemljišta. 
Ispitivan je prinos zrna soje na oglednom školskom dobru Poljoprivrednog fakulteta - Radmilovac tokom dvogodišnjeg perioda istraživanja. Praćen je uticaj tri sistema gajenja: monokulture i dva različita plodoreda (tropoljni i šestopoljni) na produktivnost useva soje. Gajenjem soje  u plodoredima dobijaju se  veći prinosi  zrna u poređenju sa monokulturom, a naročito su, u tom smislu, povoljan uticaj imali plodoredi sa većim brojem polja. Bitna je činjenica da sa svakom novom rotacijom prinos useva soje se povećavao. Korišćenje svih pozitivnih osobina ove agrotehničke, biološke i organizaciono-ekonomske mere može doprineti manjem i efikasnijem korišćenju hraniva, a sa tim i energije, smanjiti potreba za primenom pesticida, čime se  smanjuju prisutni problemi u vezi sa zaštitom okoline i degradacijom zemljišta.
AB  - In modern concepts of the development of conventional agriculture, the role and significance of the crop rotation are irreplaceable, that is, the transition from continuous cropping and two- to three crop rotation, by introducing soybean crops, are inevitable from the aspect of increasing productivity. Soybean is an excellent previous crop to most growing plants, both from the aspect of providing a part of nitrogen with nitrogen fixation, as well as from the aspect of improving the soil structure and reducing weddiness. We should not ignore the fact of maintaining and increasing the content of organic matter in the soil, which is a significant indicator of the potential fertility of the soil. 
The yield of soybean was examined at the experimental field of the Faculty of Agriculture - Radmilovac during the two-year investigation period. The influence of three cropping systems: continuous cropping system and two crop rotation (three- and six crop rotation) on the productivity of soybean were monitored. By cultivating soybeans in crop rotation, higher grain yields are compared to continuous cropping, and in particular, favorable effect in this respect has been the plodding with a large number of fields. It is important that with each new rotation the yield of soybeans increases. The use of all the positive features of this agro-technical, biological and organizational-economic measure can contribute to less and more efficient use of nutrients and energy, reduce the need for pesticide application, which reduces the existing problems related to environmental protection and soil degradation.
PB  - Beograd : PKB Agroekonomik
C3  - 33. Savetovanje agronoma, veterinara, tehnologa i agroekonomista, Beograd, 2019. - Zbornik naučnih radova
T1  - Prinos zrna soje u zavisnosti od sistema gajenja
T1  - The effect of cropping system on grain yield of soybean
VL  - 25
IS  - 1-2
UR  - https://hdl.handle.net/21.15107/rcub_rik_1033
ER  - 

@conference{
author = "Dolijanović, Željko and Kovačević, Dušan and Oljača, Snežana and Simić, Milena and Jovovic, Zoran",
year = "2019",
abstract = "U savremenim konceptima razvoja konvencionalne poljoprivrede uloga i značaj plodoreda su nezamenljivi odnosno, prelazak sa monokulture i dvopoljnog na tropoljni plodored, uvođenjem useva soje, su neminovni sa aspekta povećanja produktivnosti. Soja je odličan predusev većini ratarskih biljaka, kako sa aspekta obezbeđivanja jednog dela azota azotofiksacijom, tako i sa aspekta poboljšanja strukture zemljišta i smanjenja zakorovljenosti. Ne treba zanemariti činjenicu održanja i povećanja sadržaja organske materije u zemljištu što je značajan indikator potencijalne plodnosti zemljišta. 
Ispitivan je prinos zrna soje na oglednom školskom dobru Poljoprivrednog fakulteta - Radmilovac tokom dvogodišnjeg perioda istraživanja. Praćen je uticaj tri sistema gajenja: monokulture i dva različita plodoreda (tropoljni i šestopoljni) na produktivnost useva soje. Gajenjem soje  u plodoredima dobijaju se  veći prinosi  zrna u poređenju sa monokulturom, a naročito su, u tom smislu, povoljan uticaj imali plodoredi sa većim brojem polja. Bitna je činjenica da sa svakom novom rotacijom prinos useva soje se povećavao. Korišćenje svih pozitivnih osobina ove agrotehničke, biološke i organizaciono-ekonomske mere može doprineti manjem i efikasnijem korišćenju hraniva, a sa tim i energije, smanjiti potreba za primenom pesticida, čime se  smanjuju prisutni problemi u vezi sa zaštitom okoline i degradacijom zemljišta., In modern concepts of the development of conventional agriculture, the role and significance of the crop rotation are irreplaceable, that is, the transition from continuous cropping and two- to three crop rotation, by introducing soybean crops, are inevitable from the aspect of increasing productivity. Soybean is an excellent previous crop to most growing plants, both from the aspect of providing a part of nitrogen with nitrogen fixation, as well as from the aspect of improving the soil structure and reducing weddiness. We should not ignore the fact of maintaining and increasing the content of organic matter in the soil, which is a significant indicator of the potential fertility of the soil. 
The yield of soybean was examined at the experimental field of the Faculty of Agriculture - Radmilovac during the two-year investigation period. The influence of three cropping systems: continuous cropping system and two crop rotation (three- and six crop rotation) on the productivity of soybean were monitored. By cultivating soybeans in crop rotation, higher grain yields are compared to continuous cropping, and in particular, favorable effect in this respect has been the plodding with a large number of fields. It is important that with each new rotation the yield of soybeans increases. The use of all the positive features of this agro-technical, biological and organizational-economic measure can contribute to less and more efficient use of nutrients and energy, reduce the need for pesticide application, which reduces the existing problems related to environmental protection and soil degradation.",
publisher = "Beograd : PKB Agroekonomik",
journal = "33. Savetovanje agronoma, veterinara, tehnologa i agroekonomista, Beograd, 2019. - Zbornik naučnih radova",
title = "Prinos zrna soje u zavisnosti od sistema gajenja, The effect of cropping system on grain yield of soybean",
volume = "25",
number = "1-2",
url = "https://hdl.handle.net/21.15107/rcub_rik_1033"
}

Dolijanović, Ž., Kovačević, D., Oljača, S., Simić, M.,& Jovovic, Z.. (2019). Prinos zrna soje u zavisnosti od sistema gajenja. in 33. Savetovanje agronoma, veterinara, tehnologa i agroekonomista, Beograd, 2019. - Zbornik naučnih radova
Beograd : PKB Agroekonomik., 25(1-2).
https://hdl.handle.net/21.15107/rcub_rik_1033

Dolijanović Ž, Kovačević D, Oljača S, Simić M, Jovovic Z. Prinos zrna soje u zavisnosti od sistema gajenja. in 33. Savetovanje agronoma, veterinara, tehnologa i agroekonomista, Beograd, 2019. - Zbornik naučnih radova. 2019;25(1-2).
https://hdl.handle.net/21.15107/rcub_rik_1033 .

Dolijanović, Željko, Kovačević, Dušan, Oljača, Snežana, Simić, Milena, Jovovic, Zoran, "Prinos zrna soje u zavisnosti od sistema gajenja" in 33. Savetovanje agronoma, veterinara, tehnologa i agroekonomista, Beograd, 2019. - Zbornik naučnih radova, 25, no. 1-2 (2019),
https://hdl.handle.net/21.15107/rcub_rik_1033 .

TY  - CONF
AU  - Dolijanović, Željko
AU  - Kovačević, Dušan
AU  - Oljača, Snežana
AU  - Simić, Milena
AU  - Jovovic, Zoran
AU  - Seremesic, Srdjan
PY  - 2019
UR  - http://rik.mrizp.rs/handle/123456789/1008
AB  - Increasing the soybean cultivated area is closely related to the intensification of 
crop rotation. The introduction of soybean as a legume crop has a positive effect on 
the weediness and yield of other crops, primarily maize and winter wheat. In order 
to prove the advantages of crop rotation in relation to the continuous cropping, a 
longer period of testing is required, i.e a certain number of rotations in each of the 
crops is required. This paper presents results of the effects of crop rotation on a 
weed community in soybean. A trial was settled on the experimental field of the 
Faculty of Agriculture, Radmilovac in 1992. The following cultivation systems 
have been observed: soybean continuous cropping, maize-soybean-winter wheat 
rotation (three crop rotation), and winter wheat-maize-soybean-spring barley+red 
clover-red clover-sunflower (six-crop rotation). The conventional cropping 
practices for cultivation of soybean were applied in continuous cropping and crop 
rotations. Crops are grown in non-irrigation regime, on chernozem luvic soil type. 
Long-term effects of various cropping systems on weed infestation were observed 
by the one square meter area method in 2015. The dominant species in continuous 
cropping and crop rotations were similar: Datura stramonium L., Solanum nigrum
L., Amaranthus retroflexus L., Chenopodium album L., Sorghum halepense (L.) 
Pers and Convolvulus arvensis L. Scop. However, the number of weed species, the 
number of plants per weed species, fresh and air dry biomass was the highest in 
soybean continuous cropping and the smallest in three- and six crop rotation. In 
particular, there are large differences in the number of plants per weed species (in 
continuous cropping 43.8 and in crop rotation 12.6 and 12.8 per square meter) and 
in fresh weight (233.1 versus 96.9 and 108.2 g m-2
). The 23-year continuous 
cropping was obviously a respectable period for making unambiguous and precise 
conclusions. Crop rotations, are more effective in suppressing the number of plants 
per weed species and decreasing biomass of weeds.
PB  - Banja Luka : University of Banja Luka, Faculty of Agriculture
C3  - 8. International symposium on agricultural sciences "AgroReS 2019", Trebinje, 16-18.05.2019. - Book of abstracts
T1  - Weediness of soybean in different crop rotation
SP  - 47
EP  - 47
UR  - https://hdl.handle.net/21.15107/rcub_rik_1008
ER  - 

@conference{
author = "Dolijanović, Željko and Kovačević, Dušan and Oljača, Snežana and Simić, Milena and Jovovic, Zoran and Seremesic, Srdjan",
year = "2019",
abstract = "Increasing the soybean cultivated area is closely related to the intensification of 
crop rotation. The introduction of soybean as a legume crop has a positive effect on 
the weediness and yield of other crops, primarily maize and winter wheat. In order 
to prove the advantages of crop rotation in relation to the continuous cropping, a 
longer period of testing is required, i.e a certain number of rotations in each of the 
crops is required. This paper presents results of the effects of crop rotation on a 
weed community in soybean. A trial was settled on the experimental field of the 
Faculty of Agriculture, Radmilovac in 1992. The following cultivation systems 
have been observed: soybean continuous cropping, maize-soybean-winter wheat 
rotation (three crop rotation), and winter wheat-maize-soybean-spring barley+red 
clover-red clover-sunflower (six-crop rotation). The conventional cropping 
practices for cultivation of soybean were applied in continuous cropping and crop 
rotations. Crops are grown in non-irrigation regime, on chernozem luvic soil type. 
Long-term effects of various cropping systems on weed infestation were observed 
by the one square meter area method in 2015. The dominant species in continuous 
cropping and crop rotations were similar: Datura stramonium L., Solanum nigrum
L., Amaranthus retroflexus L., Chenopodium album L., Sorghum halepense (L.) 
Pers and Convolvulus arvensis L. Scop. However, the number of weed species, the 
number of plants per weed species, fresh and air dry biomass was the highest in 
soybean continuous cropping and the smallest in three- and six crop rotation. In 
particular, there are large differences in the number of plants per weed species (in 
continuous cropping 43.8 and in crop rotation 12.6 and 12.8 per square meter) and 
in fresh weight (233.1 versus 96.9 and 108.2 g m-2
). The 23-year continuous 
cropping was obviously a respectable period for making unambiguous and precise 
conclusions. Crop rotations, are more effective in suppressing the number of plants 
per weed species and decreasing biomass of weeds.",
publisher = "Banja Luka : University of Banja Luka, Faculty of Agriculture",
journal = "8. International symposium on agricultural sciences "AgroReS 2019", Trebinje, 16-18.05.2019. - Book of abstracts",
title = "Weediness of soybean in different crop rotation",
pages = "47-47",
url = "https://hdl.handle.net/21.15107/rcub_rik_1008"
}

Dolijanović, Ž., Kovačević, D., Oljača, S., Simić, M., Jovovic, Z.,& Seremesic, S.. (2019). Weediness of soybean in different crop rotation. in 8. International symposium on agricultural sciences "AgroReS 2019", Trebinje, 16-18.05.2019. - Book of abstracts
Banja Luka : University of Banja Luka, Faculty of Agriculture., 47-47.
https://hdl.handle.net/21.15107/rcub_rik_1008

Dolijanović Ž, Kovačević D, Oljača S, Simić M, Jovovic Z, Seremesic S. Weediness of soybean in different crop rotation. in 8. International symposium on agricultural sciences "AgroReS 2019", Trebinje, 16-18.05.2019. - Book of abstracts. 2019;:47-47.
https://hdl.handle.net/21.15107/rcub_rik_1008 .

Dolijanović, Željko, Kovačević, Dušan, Oljača, Snežana, Simić, Milena, Jovovic, Zoran, Seremesic, Srdjan, "Weediness of soybean in different crop rotation" in 8. International symposium on agricultural sciences "AgroReS 2019", Trebinje, 16-18.05.2019. - Book of abstracts (2019):47-47,
https://hdl.handle.net/21.15107/rcub_rik_1008 .

TY  - CONF
AU  - Dolijanović, Željko
AU  - Kovačević, Dušan
AU  - Oljača, Snežana
AU  - Simić, Milena
AU  - Seremesic, Srdjan
PY  - 2018
UR  - http://rik.mrizp.rs/handle/123456789/1020
AB  - Weed seeds in and on the soil are the primary cause of weed infestations in maize. Cropping
system diversification through the use of longer rotations of dissimilar species can increase the
range of stress and mortality factors that regulate weed population dynamics, and thus can be
useful for maintaining effective weed control while reducing the burden of crop protection
placed on herbicides. This paper deals with effect of continuous cropping, two-, three- and six
crop rotation on the weediness of maize. A trial was settled on the experimental field of the
Faculty of Agriculture, in 1992. The following cultivation systems have been observed: maize
continuous cropping, maize-winter wheat rotation (two-), maize-soybean-winter wheat rotation
(three-) and winter wheat-maize-soybean-spring barley+red clover-red clover-sunflower (sixcrop rotation). The common conventional cropping practices specific for maize were applied in
systems. Crops are grown in non-irrigation regime, on leached chernozem. Long-term effects
of various cropping systems on weed infestation were observed by the one square meter area
method in 2015. The 23-year continuous cropping was obviously a respectable period for
making unambiguous and precise conclusions. Namely, the number of weed species, and
especially the number of plants per weed species, has been increasing in maize continuous
cropping over years, but the increasing tendency certainly depended on meteorological
conditions in particular years. Maize continuous cropping was characterised by the highest
number of weed species and plants per weed species with the dominance of perennial species,
due to, first of all, great abundance of plants per species Sorghum halepense (L.) Pers and
Convolvulus arvensis L. The highest number of plants per annual weed species in maize
continuous cropping was recorded in species Solanum nigrum L., Chenopodium album L. and
Amaranthus retroflexus L. Dominant species in crop rotations were the same as in maize
continuous cropping, only the increased distribution of perennial species Cirsium arvense (L.)
Scop. and Agropyrum repens (L.) Beauv. was observed in the six-crop rotation. Crop rotations,
especially the three crop rotation, are more effective in suppressing the number of plants per
weed species and decreasing fresh biomass of weeds than continuous cropping and the two and six crop rotation are.
PB  - Banja Luka : University of Banja Luka, Faculty of agriculture
C3  - 7. International symposium on agricultural sciences "AgroReS2018", Banja Luka, 28.02-02.03.2018. - Book of abstracts
T1  - Weediness of maize in different crop rotation
SP  - 76
EP  - 76
UR  - https://hdl.handle.net/21.15107/rcub_rik_1020
ER  - 

@conference{
author = "Dolijanović, Željko and Kovačević, Dušan and Oljača, Snežana and Simić, Milena and Seremesic, Srdjan",
year = "2018",
abstract = "Weed seeds in and on the soil are the primary cause of weed infestations in maize. Cropping
system diversification through the use of longer rotations of dissimilar species can increase the
range of stress and mortality factors that regulate weed population dynamics, and thus can be
useful for maintaining effective weed control while reducing the burden of crop protection
placed on herbicides. This paper deals with effect of continuous cropping, two-, three- and six
crop rotation on the weediness of maize. A trial was settled on the experimental field of the
Faculty of Agriculture, in 1992. The following cultivation systems have been observed: maize
continuous cropping, maize-winter wheat rotation (two-), maize-soybean-winter wheat rotation
(three-) and winter wheat-maize-soybean-spring barley+red clover-red clover-sunflower (sixcrop rotation). The common conventional cropping practices specific for maize were applied in
systems. Crops are grown in non-irrigation regime, on leached chernozem. Long-term effects
of various cropping systems on weed infestation were observed by the one square meter area
method in 2015. The 23-year continuous cropping was obviously a respectable period for
making unambiguous and precise conclusions. Namely, the number of weed species, and
especially the number of plants per weed species, has been increasing in maize continuous
cropping over years, but the increasing tendency certainly depended on meteorological
conditions in particular years. Maize continuous cropping was characterised by the highest
number of weed species and plants per weed species with the dominance of perennial species,
due to, first of all, great abundance of plants per species Sorghum halepense (L.) Pers and
Convolvulus arvensis L. The highest number of plants per annual weed species in maize
continuous cropping was recorded in species Solanum nigrum L., Chenopodium album L. and
Amaranthus retroflexus L. Dominant species in crop rotations were the same as in maize
continuous cropping, only the increased distribution of perennial species Cirsium arvense (L.)
Scop. and Agropyrum repens (L.) Beauv. was observed in the six-crop rotation. Crop rotations,
especially the three crop rotation, are more effective in suppressing the number of plants per
weed species and decreasing fresh biomass of weeds than continuous cropping and the two and six crop rotation are.",
publisher = "Banja Luka : University of Banja Luka, Faculty of agriculture",
journal = "7. International symposium on agricultural sciences "AgroReS2018", Banja Luka, 28.02-02.03.2018. - Book of abstracts",
title = "Weediness of maize in different crop rotation",
pages = "76-76",
url = "https://hdl.handle.net/21.15107/rcub_rik_1020"
}

Dolijanović, Ž., Kovačević, D., Oljača, S., Simić, M.,& Seremesic, S.. (2018). Weediness of maize in different crop rotation. in 7. International symposium on agricultural sciences "AgroReS2018", Banja Luka, 28.02-02.03.2018. - Book of abstracts
Banja Luka : University of Banja Luka, Faculty of agriculture., 76-76.
https://hdl.handle.net/21.15107/rcub_rik_1020

Dolijanović Ž, Kovačević D, Oljača S, Simić M, Seremesic S. Weediness of maize in different crop rotation. in 7. International symposium on agricultural sciences "AgroReS2018", Banja Luka, 28.02-02.03.2018. - Book of abstracts. 2018;:76-76.
https://hdl.handle.net/21.15107/rcub_rik_1020 .

Dolijanović, Željko, Kovačević, Dušan, Oljača, Snežana, Simić, Milena, Seremesic, Srdjan, "Weediness of maize in different crop rotation" in 7. International symposium on agricultural sciences "AgroReS2018", Banja Luka, 28.02-02.03.2018. - Book of abstracts (2018):76-76,
https://hdl.handle.net/21.15107/rcub_rik_1020 .

TY  - CONF
AU  - Dolijanović, Željko
AU  - Dragičević, Vesna
AU  - Simić, Milena
AU  - Oljača, Snežana
AU  - Kovačević, Dušan
AU  - Janošević, Biljana
PY  - 2018
UR  - http://rik.mrizp.rs/handle/123456789/1019
AB  - The study was conducted in the experimental field of the Maize Research Institute Zemun Polje,
Serbia, during 2013/14-2014/15. The experiment was established as a block design with four
replications. As winter cover crops-CC (factor A) the following plants were grown: CV–common vetch
(Vicia sativa L.), FP-field pea (Pisum sativum L.), WO-winter oats, (Avena sativa L.), FK-fodder kale
(Brassica oleracea (L.) convar. acephala), two mixture variants of legume crops with oats (CV+WO
and FP+WO) and two control treatments: a variant in which the surface was covered with dead
organic mulch (DOM) and traditional variant: after ploughing in the fall plot stayed uncovered during
the winter (TV). Green biomass of the cover crops was incorporated in the soil, immediately after,
half of the elementary plot was infested with bio-fertilizer (BF) - Uniker (mobilizer of nutrients) in an
amount of 10 l ha-1
(factor B), which contains the strains of cellulolytic and proteolytic bacteria to
support the mineralization of entered crop residues. The seeds of sweet maize ‘ZPSC 421su (FAO
400) were sown at the arrangement of 70 cm between rows and 22 cm between plants in the row
(65,000 plants per ha). Preceding crop in both years was winter wheat. The kernel protein content
was measured on infrared analyser. The data were processed by ANOVA. The investigated factors
(CC and BF) showed significant effect on protein content in sweet maize kernel in both years. As it
was expected, the greatest impact on protein content was exhibited in leguminous species grown
alone, or in mixtures with oats, particularly in the dry, 2015. Small grains intercropped with legumes
obtained higher values of protein content than small grain grown as monocrops.
PB  - Skoplje : “Ss. Cyril and Methodius" University in Skopje, Faculty of agricultural sciences and food
C3  - 3. International symposium for agriculture and food "ISAF 2017", Ohrid, 18-20.10.2017. - Proceedings
T1  - The effect of cover crops on the content of protein in grain of sweet maize
VL  - 72
IS  - 2
SP  - 31
EP  - 37
UR  - https://hdl.handle.net/21.15107/rcub_rik_1019
ER  - 

@conference{
author = "Dolijanović, Željko and Dragičević, Vesna and Simić, Milena and Oljača, Snežana and Kovačević, Dušan and Janošević, Biljana",
year = "2018",
abstract = "The study was conducted in the experimental field of the Maize Research Institute Zemun Polje,
Serbia, during 2013/14-2014/15. The experiment was established as a block design with four
replications. As winter cover crops-CC (factor A) the following plants were grown: CV–common vetch
(Vicia sativa L.), FP-field pea (Pisum sativum L.), WO-winter oats, (Avena sativa L.), FK-fodder kale
(Brassica oleracea (L.) convar. acephala), two mixture variants of legume crops with oats (CV+WO
and FP+WO) and two control treatments: a variant in which the surface was covered with dead
organic mulch (DOM) and traditional variant: after ploughing in the fall plot stayed uncovered during
the winter (TV). Green biomass of the cover crops was incorporated in the soil, immediately after,
half of the elementary plot was infested with bio-fertilizer (BF) - Uniker (mobilizer of nutrients) in an
amount of 10 l ha-1
(factor B), which contains the strains of cellulolytic and proteolytic bacteria to
support the mineralization of entered crop residues. The seeds of sweet maize ‘ZPSC 421su (FAO
400) were sown at the arrangement of 70 cm between rows and 22 cm between plants in the row
(65,000 plants per ha). Preceding crop in both years was winter wheat. The kernel protein content
was measured on infrared analyser. The data were processed by ANOVA. The investigated factors
(CC and BF) showed significant effect on protein content in sweet maize kernel in both years. As it
was expected, the greatest impact on protein content was exhibited in leguminous species grown
alone, or in mixtures with oats, particularly in the dry, 2015. Small grains intercropped with legumes
obtained higher values of protein content than small grain grown as monocrops.",
publisher = "Skoplje : “Ss. Cyril and Methodius" University in Skopje, Faculty of agricultural sciences and food",
journal = "3. International symposium for agriculture and food "ISAF 2017", Ohrid, 18-20.10.2017. - Proceedings",
title = "The effect of cover crops on the content of protein in grain of sweet maize",
volume = "72",
number = "2",
pages = "31-37",
url = "https://hdl.handle.net/21.15107/rcub_rik_1019"
}

Dolijanović, Ž., Dragičević, V., Simić, M., Oljača, S., Kovačević, D.,& Janošević, B.. (2018). The effect of cover crops on the content of protein in grain of sweet maize. in 3. International symposium for agriculture and food "ISAF 2017", Ohrid, 18-20.10.2017. - Proceedings
Skoplje : “Ss. Cyril and Methodius" University in Skopje, Faculty of agricultural sciences and food., 72(2), 31-37.
https://hdl.handle.net/21.15107/rcub_rik_1019

Dolijanović Ž, Dragičević V, Simić M, Oljača S, Kovačević D, Janošević B. The effect of cover crops on the content of protein in grain of sweet maize. in 3. International symposium for agriculture and food "ISAF 2017", Ohrid, 18-20.10.2017. - Proceedings. 2018;72(2):31-37.
https://hdl.handle.net/21.15107/rcub_rik_1019 .

Dolijanović, Željko, Dragičević, Vesna, Simić, Milena, Oljača, Snežana, Kovačević, Dušan, Janošević, Biljana, "The effect of cover crops on the content of protein in grain of sweet maize" in 3. International symposium for agriculture and food "ISAF 2017", Ohrid, 18-20.10.2017. - Proceedings, 72, no. 2 (2018):31-37,
https://hdl.handle.net/21.15107/rcub_rik_1019 .

TY  - JOUR
AU  - Dolijanović, Željko
AU  - Oljača, Snežana
AU  - Kovačević, Dušan
AU  - Simić, Milena
AU  - Dragičević, Vesna
PY  - 2015
UR  - http://rik.mrizp.rs/handle/123456789/614
AB  - World population is growing exponentially and agricultural production must meet the needs of the food. An attractive strategy for increasing productivity per unit area of land available is to intensify land use. Given that this strategy creates a number of problems in terms of the environment and yet can not meet the food needs of humanity on planet Earth, must be found alternative approaches to growing plants. One of them is intercropping - growing two or more crops in the same space at the same time. This system leads to an increase in productivity per unit area of land through better use of resources, to reduce the risk, reduce competition from weeds and leads to the stabilization of yields. Several important factors affecting the development of this system as well as a selection of compatible crops, vegetation length crop density and time of sowing/planting, as well as socio-economic status of farmers and regions. As a numeric indicator of efficient use of land commonly used land equivalent ratio index (LER) and on the basis of this index have shown the advantages of growing intercrops. Cereals grown merged with legumes are the best and most widely practiced types of intercrops, wheat and within the most important place belong to the maize. Precisely, in this study will be based on a review of papers that deal with the issue of growing maize intercropping system with other crop species.
AB  - Svetska populacija raste eksponencijalno a poljoprivredna proizvodnja mora da zadovolji potrebama u hrani. Atraktivna strategija za povećanje produktivnosti po jedinici površine raspoloživog zemljišta je da se intenzivira korišćenje zemljišta. S obzirom da takva strategija prouzrokuje brojne probleme u pogledu životne sredine a opet ne može da zadovolji potrebe za hranom čovečanstva na planeti Zemlji, moraju se iznalaziti alternativni pristupi u gajenju biljaka. Jedan od njih je združivanje useva (intercropping) - gajenje dva ili više useva u istom prostoru u isto vreme. Ovaj sistem dovodi do povećanja produktivnosti po jedinici površine zemljišta putem boljeg korišćenja resursa, do smanjenja rizika, smanjenja konkurencije od strane korova i dovodi do stabilizovanja prinosa. Nekoliko značajnih faktora utice na razvoj ovog sistema kao što su izbor kompatibilnih useva, dužin vegetacionog perioda useva, gustine i vreme setve/sadnje, kao i socio-ekonomski status poljoprivrednih proizvođača i regiona. Kao brojčani pokazatelj efikasnijeg korišćenja zemljišta najčešće se koristi indeks efikasnosti korišćenja zemljišta (LER) i na osnovu ovog indeksa dokazane su prednosti gajenja združenih useva. Žita gajena združeno sa leguminozama su najpovoljnije i najčešće praktikovane vrste združenih useva, a u okviru žita najznačajnije mesto pripada kukuruzu. Upravo, u ovoj studiji ćemo se bazirati na pregledu radova koje tretiraju problematiku gajenja kukuruza u združenim usevima sa drugim ratarskim vrstama.
PB  - Institut PKB Agroekonomik, Padinska skela
T2  - Zbornik naučnih radova Instituta PKB Agroekonomik
T1  - Intercropping: Alternative way for sustainable agriculture
T1  - Združeni usevi - alternativni put za održivu poljoprivredu
VL  - 21
IS  - 1-2
SP  - 33
EP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_rik_614
ER  - 

@article{
author = "Dolijanović, Željko and Oljača, Snežana and Kovačević, Dušan and Simić, Milena and Dragičević, Vesna",
year = "2015",
abstract = "World population is growing exponentially and agricultural production must meet the needs of the food. An attractive strategy for increasing productivity per unit area of land available is to intensify land use. Given that this strategy creates a number of problems in terms of the environment and yet can not meet the food needs of humanity on planet Earth, must be found alternative approaches to growing plants. One of them is intercropping - growing two or more crops in the same space at the same time. This system leads to an increase in productivity per unit area of land through better use of resources, to reduce the risk, reduce competition from weeds and leads to the stabilization of yields. Several important factors affecting the development of this system as well as a selection of compatible crops, vegetation length crop density and time of sowing/planting, as well as socio-economic status of farmers and regions. As a numeric indicator of efficient use of land commonly used land equivalent ratio index (LER) and on the basis of this index have shown the advantages of growing intercrops. Cereals grown merged with legumes are the best and most widely practiced types of intercrops, wheat and within the most important place belong to the maize. Precisely, in this study will be based on a review of papers that deal with the issue of growing maize intercropping system with other crop species., Svetska populacija raste eksponencijalno a poljoprivredna proizvodnja mora da zadovolji potrebama u hrani. Atraktivna strategija za povećanje produktivnosti po jedinici površine raspoloživog zemljišta je da se intenzivira korišćenje zemljišta. S obzirom da takva strategija prouzrokuje brojne probleme u pogledu životne sredine a opet ne može da zadovolji potrebe za hranom čovečanstva na planeti Zemlji, moraju se iznalaziti alternativni pristupi u gajenju biljaka. Jedan od njih je združivanje useva (intercropping) - gajenje dva ili više useva u istom prostoru u isto vreme. Ovaj sistem dovodi do povećanja produktivnosti po jedinici površine zemljišta putem boljeg korišćenja resursa, do smanjenja rizika, smanjenja konkurencije od strane korova i dovodi do stabilizovanja prinosa. Nekoliko značajnih faktora utice na razvoj ovog sistema kao što su izbor kompatibilnih useva, dužin vegetacionog perioda useva, gustine i vreme setve/sadnje, kao i socio-ekonomski status poljoprivrednih proizvođača i regiona. Kao brojčani pokazatelj efikasnijeg korišćenja zemljišta najčešće se koristi indeks efikasnosti korišćenja zemljišta (LER) i na osnovu ovog indeksa dokazane su prednosti gajenja združenih useva. Žita gajena združeno sa leguminozama su najpovoljnije i najčešće praktikovane vrste združenih useva, a u okviru žita najznačajnije mesto pripada kukuruzu. Upravo, u ovoj studiji ćemo se bazirati na pregledu radova koje tretiraju problematiku gajenja kukuruza u združenim usevima sa drugim ratarskim vrstama.",
publisher = "Institut PKB Agroekonomik, Padinska skela",
journal = "Zbornik naučnih radova Instituta PKB Agroekonomik",
title = "Intercropping: Alternative way for sustainable agriculture, Združeni usevi - alternativni put za održivu poljoprivredu",
volume = "21",
number = "1-2",
pages = "33-44",
url = "https://hdl.handle.net/21.15107/rcub_rik_614"
}

Dolijanović, Ž., Oljača, S., Kovačević, D., Simić, M.,& Dragičević, V.. (2015). Intercropping: Alternative way for sustainable agriculture. in Zbornik naučnih radova Instituta PKB Agroekonomik
Institut PKB Agroekonomik, Padinska skela., 21(1-2), 33-44.
https://hdl.handle.net/21.15107/rcub_rik_614

Dolijanović Ž, Oljača S, Kovačević D, Simić M, Dragičević V. Intercropping: Alternative way for sustainable agriculture. in Zbornik naučnih radova Instituta PKB Agroekonomik. 2015;21(1-2):33-44.
https://hdl.handle.net/21.15107/rcub_rik_614 .

Dolijanović, Željko, Oljača, Snežana, Kovačević, Dušan, Simić, Milena, Dragičević, Vesna, "Intercropping: Alternative way for sustainable agriculture" in Zbornik naučnih radova Instituta PKB Agroekonomik, 21, no. 1-2 (2015):33-44,
https://hdl.handle.net/21.15107/rcub_rik_614 .

TY  - JOUR
AU  - Spasojević, Igor
AU  - Dragičević, Vesna
AU  - Simić, Milena
AU  - Kovačević, Dušan
AU  - Brankov, Milan
PY  - 2014
UR  - http://rik.mrizp.rs/handle/123456789/561
AB  - Rotation is a cropping system that has many advantages and ensures better crop growth and yielding. Its combination with other cropping measures can ensure optimal crop density for maximal growth and photosynthesis efficiency. The aim of this study was to investigate the influence of different cropping systems: monoculture and two rotations, including maize, wheat and soybean (MSW and MWS), and different weed management methods (weed removal by hoeing, application of a full recommended herbicide dose (RD) and half that dose (0.5 RD), and weedy check) on weed biomass and maize growth parameters - leaf area index (LAI), free energy, contents of chlorophyll and carotenoids, grain yield, and their possible relationships in two fields of the maize hybrids ZP 677 (H1) and ZP 606 (H2). The lowest LAI and grain yield were found in monoculture, particularly in weedy check, which had relatively high weed infestation. Higher weed biomass was also observed in herbicide treated plots in monoculture. Such high competition pressure indicates a stress reflected on reduced LAI and chlorophyll content, and increased free energy and content of carotenoids. On the other hand, rotation, particularly if it is combined with the application of herbicides or hoeing, had a positive impact on yielding potential by increasing LAI and the contents of chlorophyll and carotenoids, and decreasing free energy.
AB  - Plodored, kao sistem gajenja ima brojne prednosti koje se ogledaju u boljem rastu i prinosu useva. Njegovom kombinacijom sa drugim merama gajenja moguće je obezbediti optimalnu gustinu za maksimalan rast i efikasnost fotosinteze. Cilj ovog rada je da se ispita uticaj različitih sistema gajenja: monokulture i dva tipa rotacija koja uključuju kukuruz, pšenicu i soju (MSW i MWS), zajedno sa različitim merama kontrole zakorovljenosti (okopavanje, upotreba preporučene (RD), polovine preporučene (0,5 RD) doze herbicida i kontrola bez uklanjanja korova) na biomasu korova, parametre rasta kukuruza - indeks lisne površine (LAI), slobodnu energiju, sadržaj hlorofila i karotenoida, prinos zrna, kao i njihove međusobne odnose kod dva hibrida kukuruza: ZP 677 (H1) i ZP 606 (H2)). Najniži LAI i prinos zrna bili su ostvareni u monokulturi, posebno u kontroli, zajedno sa relativno visokom zakorovljenošću. Veća biomasa korova je bila u tretmanima sa herbicidima u monokulturi. Ovakva situacija bi mogla da ukaže na prisustvo stresa koji se odražava na smanjenje LAI i sadržaja hlorofila, kao i povećanje vrednosti slobodne energije i karotenoida. Sa druge strane, plodored, posebno u kombinaciji sa herbicidima ili okopavanjem ispoljio je pozitivan uticaj na prinos preko povećanja LAI, sadržaja hlorofila i karotenoida i smanjenja slobodne energije.
PB  - Institut za pesticide i zaštitu životne sredine, Beograd i Društvo za zaštitu bilja Srbije, Beograd
T2  - Pesticidi i fitomedicina
T1  - Effects of different cropping systems and weed management methods on free energy and content of pigments in maize
T1  - Efekti različitih sistema gajenja kukuruza i kontrole zakorovljenosti na status slobodne energije i sadržaj biljnih pigmenata
VL  - 29
IS  - 1
SP  - 45
EP  - 54
DO  - 10.2298/PIF1401045S
ER  - 

@article{
author = "Spasojević, Igor and Dragičević, Vesna and Simić, Milena and Kovačević, Dušan and Brankov, Milan",
year = "2014",
abstract = "Rotation is a cropping system that has many advantages and ensures better crop growth and yielding. Its combination with other cropping measures can ensure optimal crop density for maximal growth and photosynthesis efficiency. The aim of this study was to investigate the influence of different cropping systems: monoculture and two rotations, including maize, wheat and soybean (MSW and MWS), and different weed management methods (weed removal by hoeing, application of a full recommended herbicide dose (RD) and half that dose (0.5 RD), and weedy check) on weed biomass and maize growth parameters - leaf area index (LAI), free energy, contents of chlorophyll and carotenoids, grain yield, and their possible relationships in two fields of the maize hybrids ZP 677 (H1) and ZP 606 (H2). The lowest LAI and grain yield were found in monoculture, particularly in weedy check, which had relatively high weed infestation. Higher weed biomass was also observed in herbicide treated plots in monoculture. Such high competition pressure indicates a stress reflected on reduced LAI and chlorophyll content, and increased free energy and content of carotenoids. On the other hand, rotation, particularly if it is combined with the application of herbicides or hoeing, had a positive impact on yielding potential by increasing LAI and the contents of chlorophyll and carotenoids, and decreasing free energy., Plodored, kao sistem gajenja ima brojne prednosti koje se ogledaju u boljem rastu i prinosu useva. Njegovom kombinacijom sa drugim merama gajenja moguće je obezbediti optimalnu gustinu za maksimalan rast i efikasnost fotosinteze. Cilj ovog rada je da se ispita uticaj različitih sistema gajenja: monokulture i dva tipa rotacija koja uključuju kukuruz, pšenicu i soju (MSW i MWS), zajedno sa različitim merama kontrole zakorovljenosti (okopavanje, upotreba preporučene (RD), polovine preporučene (0,5 RD) doze herbicida i kontrola bez uklanjanja korova) na biomasu korova, parametre rasta kukuruza - indeks lisne površine (LAI), slobodnu energiju, sadržaj hlorofila i karotenoida, prinos zrna, kao i njihove međusobne odnose kod dva hibrida kukuruza: ZP 677 (H1) i ZP 606 (H2)). Najniži LAI i prinos zrna bili su ostvareni u monokulturi, posebno u kontroli, zajedno sa relativno visokom zakorovljenošću. Veća biomasa korova je bila u tretmanima sa herbicidima u monokulturi. Ovakva situacija bi mogla da ukaže na prisustvo stresa koji se odražava na smanjenje LAI i sadržaja hlorofila, kao i povećanje vrednosti slobodne energije i karotenoida. Sa druge strane, plodored, posebno u kombinaciji sa herbicidima ili okopavanjem ispoljio je pozitivan uticaj na prinos preko povećanja LAI, sadržaja hlorofila i karotenoida i smanjenja slobodne energije.",
publisher = "Institut za pesticide i zaštitu životne sredine, Beograd i Društvo za zaštitu bilja Srbije, Beograd",
journal = "Pesticidi i fitomedicina",
title = "Effects of different cropping systems and weed management methods on free energy and content of pigments in maize, Efekti različitih sistema gajenja kukuruza i kontrole zakorovljenosti na status slobodne energije i sadržaj biljnih pigmenata",
volume = "29",
number = "1",
pages = "45-54",
doi = "10.2298/PIF1401045S"
}

Spasojević, I., Dragičević, V., Simić, M., Kovačević, D.,& Brankov, M.. (2014). Effects of different cropping systems and weed management methods on free energy and content of pigments in maize. in Pesticidi i fitomedicina
Institut za pesticide i zaštitu životne sredine, Beograd i Društvo za zaštitu bilja Srbije, Beograd., 29(1), 45-54.
https://doi.org/10.2298/PIF1401045S

Spasojević I, Dragičević V, Simić M, Kovačević D, Brankov M. Effects of different cropping systems and weed management methods on free energy and content of pigments in maize. in Pesticidi i fitomedicina. 2014;29(1):45-54.
doi:10.2298/PIF1401045S .

Spasojević, Igor, Dragičević, Vesna, Simić, Milena, Kovačević, Dušan, Brankov, Milan, "Effects of different cropping systems and weed management methods on free energy and content of pigments in maize" in Pesticidi i fitomedicina, 29, no. 1 (2014):45-54,
https://doi.org/10.2298/PIF1401045S . .

TY  - JOUR
AU  - Dolijanović, Željko
AU  - Oljača, Snežana
AU  - Kovačević, Dušan
AU  - Simić, Milena
AU  - Momirović, Nebojša
AU  - Jovanović, Života
PY  - 2013
UR  - http://rik.mrizp.rs/handle/123456789/500
AB  - Intercropping systems could improve utilization of the most important resources (soil, water and nutrients), provide a better control of weeds, pests and diseases, and finally higher productivity, especially under rain-fed growing conditions. This study aimed to determine the effects of three maize (Zea mays L.) prolific hybrids (FAO 500, 600 and 700) and the spatial intercrop patterns on the above-ground biomass and grain yields of maize and soybean (Glycine max L. Merrill), on chernozem soil type at Zemun Polje, Belgrade, in 2003, 2004 and 2005. The experimental design was a complete randomized block with four replications and three treatments: 3 rows of maize and 3 rows of soybean in strips for each maize hybrid (three variants, 3 rows of maize and 3 rows of soybean in alternate rows for each hybrid (another three variants) and monocrops of both maize and soybeans. To optimize the ecological and economic benefits of maize/soybean intercrop in terms of yield, variety selection and compatibility of the component crops should be made using established agronomic management practices involving the two crops. Suitable maize varieties for maize/soybean intercrop systems are varieties that have less dense canopy. These varieties would therefore have lesser shading effect to the understory beans. However, establishment of an appropriate spatial arrangement of the component crops would be essential to alleviate negative effects especially on the less competitive crop. The intercropping system in alternate rows showed significantly higher above-ground biomass and grain yields in comparation with both the strip intercropping system and maize monocrops in 2004. Soybean gave significantly lower above-ground biomass and grain yield in intercrops than in monocrops. Maize prolific hybrid growing in intercropping with soybean as legume crop, increased productivity of cropping system, especially in favourable agroecological conditions. Maize and soybean yields reduction could have also been due to inter-specific competition for resources such as nutrients and water. Moreover, performance of the currently grown varieties in the semi-arid regions depends on the amount of rainfall received during the growing season.
AB  - Gajenjem združenih useva može se poboljšati iskorišćenost najvažnijih resursa (zemljišta, vode i hranljivih materija), obezbediti bolja kontrola korova, štetočina i bolesti, i povećati produktivnost, posebno u uslovima prirodnog vodnog režima. Cilj ovih istraživanja jeste da se utvrde uticaji tri različita višeklipa hibrida kukuruza (FAO 500, 600 i 700) i prostornog rasporeda (naizmenični redovi i trake) na prinose nadzemne biomase i zrna združenih i čistih useva kukuruza i soje. Istraživanja su obavljena na zemljištu tipa černozem u Zemun Polju, Beograd, tokom 2003, 2004 i 2005. godine. Ogledi su izvedeni po planu potpuno slučajnog blok sistema u četiri ponavljanja i tri tretmana: združeni usev kukuruza i soje u trakama za svaki hibrid kukuruza (tri varijante), združeni usev kukuruza i soje u naizmeničnim redovima za svaki hibrid (još tri varijante) i čisti usevi kukuruza i soje. U združenom usevu u naizmeničnim redovima su dobijeni značajno veći prinosi nadzemne biomase i zrna kukuruza. Ispitivani višeklipi hibridi kukuruza iz različitih FAO grupa zrenja, gajeni u združenom usevu sa sojom, imali su pozitivan uticaj na prinos, kako nadzemne biomase, tako i zrna, ali samo u 2004. godini koja je ocenjena kao najpovoljnija sa stanovišta meteoroloških uslova, posebno količine i rasporeda padavina.
PB  - Društvo genetičara Srbije, Beograd
T2  - Genetika
T1  - Dependence of the productivity of maize and soybean intercropping systems on hybrid type and plant arrangement pattern
T1  - Produktivnost združenog useva kukuruza i soje u zavisnosti od tipa hibrida i prostornog rasporeda
VL  - 45
IS  - 1
SP  - 135
EP  - 144
DO  - 10.2298/GENSR1301135D
ER  - 

@article{
author = "Dolijanović, Željko and Oljača, Snežana and Kovačević, Dušan and Simić, Milena and Momirović, Nebojša and Jovanović, Života",
year = "2013",
abstract = "Intercropping systems could improve utilization of the most important resources (soil, water and nutrients), provide a better control of weeds, pests and diseases, and finally higher productivity, especially under rain-fed growing conditions. This study aimed to determine the effects of three maize (Zea mays L.) prolific hybrids (FAO 500, 600 and 700) and the spatial intercrop patterns on the above-ground biomass and grain yields of maize and soybean (Glycine max L. Merrill), on chernozem soil type at Zemun Polje, Belgrade, in 2003, 2004 and 2005. The experimental design was a complete randomized block with four replications and three treatments: 3 rows of maize and 3 rows of soybean in strips for each maize hybrid (three variants, 3 rows of maize and 3 rows of soybean in alternate rows for each hybrid (another three variants) and monocrops of both maize and soybeans. To optimize the ecological and economic benefits of maize/soybean intercrop in terms of yield, variety selection and compatibility of the component crops should be made using established agronomic management practices involving the two crops. Suitable maize varieties for maize/soybean intercrop systems are varieties that have less dense canopy. These varieties would therefore have lesser shading effect to the understory beans. However, establishment of an appropriate spatial arrangement of the component crops would be essential to alleviate negative effects especially on the less competitive crop. The intercropping system in alternate rows showed significantly higher above-ground biomass and grain yields in comparation with both the strip intercropping system and maize monocrops in 2004. Soybean gave significantly lower above-ground biomass and grain yield in intercrops than in monocrops. Maize prolific hybrid growing in intercropping with soybean as legume crop, increased productivity of cropping system, especially in favourable agroecological conditions. Maize and soybean yields reduction could have also been due to inter-specific competition for resources such as nutrients and water. Moreover, performance of the currently grown varieties in the semi-arid regions depends on the amount of rainfall received during the growing season., Gajenjem združenih useva može se poboljšati iskorišćenost najvažnijih resursa (zemljišta, vode i hranljivih materija), obezbediti bolja kontrola korova, štetočina i bolesti, i povećati produktivnost, posebno u uslovima prirodnog vodnog režima. Cilj ovih istraživanja jeste da se utvrde uticaji tri različita višeklipa hibrida kukuruza (FAO 500, 600 i 700) i prostornog rasporeda (naizmenični redovi i trake) na prinose nadzemne biomase i zrna združenih i čistih useva kukuruza i soje. Istraživanja su obavljena na zemljištu tipa černozem u Zemun Polju, Beograd, tokom 2003, 2004 i 2005. godine. Ogledi su izvedeni po planu potpuno slučajnog blok sistema u četiri ponavljanja i tri tretmana: združeni usev kukuruza i soje u trakama za svaki hibrid kukuruza (tri varijante), združeni usev kukuruza i soje u naizmeničnim redovima za svaki hibrid (još tri varijante) i čisti usevi kukuruza i soje. U združenom usevu u naizmeničnim redovima su dobijeni značajno veći prinosi nadzemne biomase i zrna kukuruza. Ispitivani višeklipi hibridi kukuruza iz različitih FAO grupa zrenja, gajeni u združenom usevu sa sojom, imali su pozitivan uticaj na prinos, kako nadzemne biomase, tako i zrna, ali samo u 2004. godini koja je ocenjena kao najpovoljnija sa stanovišta meteoroloških uslova, posebno količine i rasporeda padavina.",
publisher = "Društvo genetičara Srbije, Beograd",
journal = "Genetika",
title = "Dependence of the productivity of maize and soybean intercropping systems on hybrid type and plant arrangement pattern, Produktivnost združenog useva kukuruza i soje u zavisnosti od tipa hibrida i prostornog rasporeda",
volume = "45",
number = "1",
pages = "135-144",
doi = "10.2298/GENSR1301135D"
}

Dolijanović, Ž., Oljača, S., Kovačević, D., Simić, M., Momirović, N.,& Jovanović, Ž.. (2013). Dependence of the productivity of maize and soybean intercropping systems on hybrid type and plant arrangement pattern. in Genetika
Društvo genetičara Srbije, Beograd., 45(1), 135-144.
https://doi.org/10.2298/GENSR1301135D

Dolijanović Ž, Oljača S, Kovačević D, Simić M, Momirović N, Jovanović Ž. Dependence of the productivity of maize and soybean intercropping systems on hybrid type and plant arrangement pattern. in Genetika. 2013;45(1):135-144.
doi:10.2298/GENSR1301135D .

Dolijanović, Željko, Oljača, Snežana, Kovačević, Dušan, Simić, Milena, Momirović, Nebojša, Jovanović, Života, "Dependence of the productivity of maize and soybean intercropping systems on hybrid type and plant arrangement pattern" in Genetika, 45, no. 1 (2013):135-144,
https://doi.org/10.2298/GENSR1301135D . .

TY  - JOUR
AU  - Dolijanović, Željko
AU  - Kovačević, Dušan
AU  - Oljača, Snežana
AU  - Simić, Milena
PY  - 2009
UR  - http://rik.mrizp.rs/handle/123456789/279
AB  - Intercropping two or more crops under similar micro environmental conditions can increase the agricultural productivity. A field study was conducted in three-year period 2003-2005 at experimental field of Maize Research Institute, Belgrade on chernozem soil type. This examination included three experimental hybrids of maize from various FAO groups of ripening (500,600 and 700) and the type of soya bean from II group of ripening (Nena). Maize and soybean was grown in pure stands and three combinations of intercrops (alternate-row and in strip intercropping). Additive design was used for creating of intercrop variants. The paper investigated the grain yield of maize and soya bean in the intercropping, and compared with the yield of the monocrops. Comparison of the yield was carried out with the most Number indicators- Land equivalent Ratio index (LER). For individual comparisons used the standard error differences between means. Comparing with the intercropping production of monocrops production of maize and soya bean, with the index LER, the results obtained indicate that there are more intercropping production, especially in 2004. The three-year average, the increase of grain yield in the intercropping in relation to monocrops of maize and soya bean was 45% in the strip, or 49% in the alternate rows. Intra-species the intensity of competition is higher in the strip and in the pattern arrangement of the resulting lower relative grain yield, primarily due to lower maize yield.
AB  - Gajenje dva ili više useva u sličnim mikroklimatskim uslovima može dovesti do povećanja produktivnosti. Ispitivanja združenih i čistih useva kukuruza i soje, u prirodnom vodnom režimu, su sprovedena u periodu od 2003. do 2005. godine na eksperimentalnom polju Instituta za kukuruz u Zemun polju, na zemljištu tipa černozem. Gajena su 3 eksperimentalna hibrida kukuruza iz različitih FAO grupa zrenja (EPH2-FAO 500, EPH4-FAO 600 i EPH 11 - FAO 700) i sorta soje Nena iz II grupe zrenja. Združena setva kukuruza i soje je obavljena po aditivnom metodu, a primenjivana su dva prostorna rasporeda: u trakama i u naizmeničnim redovima. U radu su ispitivani prinosi zrna kukuruza i soje u združenim i upoređivani sa prinosom u čistim usevima. Upoređivanje dobijenih prinosa je obavljeno pomoću najpoznatijeg brojčanog pokazatelja-indeksa efikasnosti korišćenja zemljišta (LER indeksa). Za pojedinačna poređenja korišćena je standardna greška razlike aritmetičkih sredina. Upoređujući produkciju združenih sa produkcijom čistih useva kukuruza i soje, pomoću LER indeksa, dobijeni rezultati ukazuju na veću produkciju združenih useva, posebno u 2004. godini. U trogodišnjem proseku, povećanje prinosa zrna u združenim u odnosu na čiste useve kukuruza i soje iznosilo je 45% u trakama, odnosno 49 % u naizmeničnim redovima. Intenzitet intraspecijske kompeticije je veći u trakama, pa su u tom prostornom rasporedu dobijeni niži relativni prinosi zrna, prvenstveno zbog nižih prinosa kukuruza.
PB  - Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd
T2  - Journal of Agricultural Sciences
T1  - Types of interactions in intercropping of maize and soya bean
T1  - Tipovi interakcija u združenom usevu kukuruza i soje
VL  - 54
IS  - 3
SP  - 179
EP  - 187
DO  - 10.2298/JAS0903179D
ER  - 

@article{
author = "Dolijanović, Željko and Kovačević, Dušan and Oljača, Snežana and Simić, Milena",
year = "2009",
abstract = "Intercropping two or more crops under similar micro environmental conditions can increase the agricultural productivity. A field study was conducted in three-year period 2003-2005 at experimental field of Maize Research Institute, Belgrade on chernozem soil type. This examination included three experimental hybrids of maize from various FAO groups of ripening (500,600 and 700) and the type of soya bean from II group of ripening (Nena). Maize and soybean was grown in pure stands and three combinations of intercrops (alternate-row and in strip intercropping). Additive design was used for creating of intercrop variants. The paper investigated the grain yield of maize and soya bean in the intercropping, and compared with the yield of the monocrops. Comparison of the yield was carried out with the most Number indicators- Land equivalent Ratio index (LER). For individual comparisons used the standard error differences between means. Comparing with the intercropping production of monocrops production of maize and soya bean, with the index LER, the results obtained indicate that there are more intercropping production, especially in 2004. The three-year average, the increase of grain yield in the intercropping in relation to monocrops of maize and soya bean was 45% in the strip, or 49% in the alternate rows. Intra-species the intensity of competition is higher in the strip and in the pattern arrangement of the resulting lower relative grain yield, primarily due to lower maize yield., Gajenje dva ili više useva u sličnim mikroklimatskim uslovima može dovesti do povećanja produktivnosti. Ispitivanja združenih i čistih useva kukuruza i soje, u prirodnom vodnom režimu, su sprovedena u periodu od 2003. do 2005. godine na eksperimentalnom polju Instituta za kukuruz u Zemun polju, na zemljištu tipa černozem. Gajena su 3 eksperimentalna hibrida kukuruza iz različitih FAO grupa zrenja (EPH2-FAO 500, EPH4-FAO 600 i EPH 11 - FAO 700) i sorta soje Nena iz II grupe zrenja. Združena setva kukuruza i soje je obavljena po aditivnom metodu, a primenjivana su dva prostorna rasporeda: u trakama i u naizmeničnim redovima. U radu su ispitivani prinosi zrna kukuruza i soje u združenim i upoređivani sa prinosom u čistim usevima. Upoređivanje dobijenih prinosa je obavljeno pomoću najpoznatijeg brojčanog pokazatelja-indeksa efikasnosti korišćenja zemljišta (LER indeksa). Za pojedinačna poređenja korišćena je standardna greška razlike aritmetičkih sredina. Upoređujući produkciju združenih sa produkcijom čistih useva kukuruza i soje, pomoću LER indeksa, dobijeni rezultati ukazuju na veću produkciju združenih useva, posebno u 2004. godini. U trogodišnjem proseku, povećanje prinosa zrna u združenim u odnosu na čiste useve kukuruza i soje iznosilo je 45% u trakama, odnosno 49 % u naizmeničnim redovima. Intenzitet intraspecijske kompeticije je veći u trakama, pa su u tom prostornom rasporedu dobijeni niži relativni prinosi zrna, prvenstveno zbog nižih prinosa kukuruza.",
publisher = "Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd",
journal = "Journal of Agricultural Sciences",
title = "Types of interactions in intercropping of maize and soya bean, Tipovi interakcija u združenom usevu kukuruza i soje",
volume = "54",
number = "3",
pages = "179-187",
doi = "10.2298/JAS0903179D"
}

Dolijanović, Ž., Kovačević, D., Oljača, S.,& Simić, M.. (2009). Types of interactions in intercropping of maize and soya bean. in Journal of Agricultural Sciences
Univerzitet u Beogradu - Poljoprivredni fakultet, Beograd., 54(3), 179-187.
https://doi.org/10.2298/JAS0903179D

Dolijanović Ž, Kovačević D, Oljača S, Simić M. Types of interactions in intercropping of maize and soya bean. in Journal of Agricultural Sciences. 2009;54(3):179-187.
doi:10.2298/JAS0903179D .

Dolijanović, Željko, Kovačević, Dušan, Oljača, Snežana, Simić, Milena, "Types of interactions in intercropping of maize and soya bean" in Journal of Agricultural Sciences, 54, no. 3 (2009):179-187,
https://doi.org/10.2298/JAS0903179D . .

TY  - JOUR
AU  - Dolijanović, Željko
AU  - Oljača, Snežana
AU  - Kovačević, Dušan
AU  - Simić, Milena
AU  - Momirović, Nebojša
PY  - 2008
UR  - http://rik.mrizp.rs/handle/123456789/229
AB  - Decrease in the number and biomass of weeds, especially of perennial ones, is one of the advantages of intercropping. The results obtained in the first two years of investigation (2003 and 2004) show that the number of perennial weeds and their fresh weight were lower in both plant arrangement patterns in intercrops than in maize and soybean monocrops. However, in 2005, the arrangement pattern in strips was the only efficient pattern in terms of weed fresh weight per area unit. In the dry year of 2003, the plant arrangement pattern in alternate rows was advantageous, while the pattern in strips was more efficient in 2004 and 2005. Intercropping affected maize more favourably than soybean crops, in which the positive effect was most evident in 2005, especially in strips, and it mainly related to the number of weed plants per species. The longer the growing season of studied maize hybrids was, the less intensive was weed distribution in monocrops. Such a regularity was expressed in intercrops in 2003 in both plant arrangement patterns, while in 2004 and 2005 intercropping in strips was efficient with late maturity hybrids, especially in relation to weed fresh weight.
AB  - Jedna od prednosti združivanja useva jeste smanjenje broja i mase korova, naročito višegodišnjih. U prve dve godine ispitivanja (2003. i 2004), broj višegodišnjih korova i sveža masa korova bila je manja u oba prostorna rasporeda u združenim u odnosu na čiste useve kukuruza i soje. Međutim, u 2005. godini, samo je prostorni raspored u trakama ispoljio efikasnost u pogledu sveže mase korova po jedinici površine. U sušnoj, 2003. godini, prednost je bila na strani združivanja u naizmeničnim redovima, a u 2004. i 2005. godini, veću efikasnost je ispoljio drugi prostorni raspored - trake. Združivanje useva je povoljnije delovalo na kukuruz, dok je kod useva soje pozitivan efekat združivanja najuočljiviji u 2005. godini, posebno u trakama, a uglavnom se odnosi na broj jedinki korova. Zakorovljenost čistih useva kukuruza se smanjivala sa povećanjem dužine vegetacionog perioda ispitivanih hibrida kukuruza. U združenim usevima takva pravilnost je ispoljena u 2003. godini, u oba prostorna rasporeda, dok je u 2004. i 2005. godini, združivanje u trakama sa kasnostasnijim hibridima kukuruza ispoljilo efikasnost, posebno u pogledu sveže mase korova.
PB  - Herbološko društvo Srbije
T2  - Acta herbologica
T1  - The effect of plant arrangement pattern and hybrids on weediness of a maize and soybean intercropping system
T1  - Uticaj prostornog rasporeda i hibrida na zakorovljenost združenog useva kukuruza i soje
VL  - 17
IS  - 2
SP  - 67
EP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_rik_229
ER  - 

@article{
author = "Dolijanović, Željko and Oljača, Snežana and Kovačević, Dušan and Simić, Milena and Momirović, Nebojša",
year = "2008",
abstract = "Decrease in the number and biomass of weeds, especially of perennial ones, is one of the advantages of intercropping. The results obtained in the first two years of investigation (2003 and 2004) show that the number of perennial weeds and their fresh weight were lower in both plant arrangement patterns in intercrops than in maize and soybean monocrops. However, in 2005, the arrangement pattern in strips was the only efficient pattern in terms of weed fresh weight per area unit. In the dry year of 2003, the plant arrangement pattern in alternate rows was advantageous, while the pattern in strips was more efficient in 2004 and 2005. Intercropping affected maize more favourably than soybean crops, in which the positive effect was most evident in 2005, especially in strips, and it mainly related to the number of weed plants per species. The longer the growing season of studied maize hybrids was, the less intensive was weed distribution in monocrops. Such a regularity was expressed in intercrops in 2003 in both plant arrangement patterns, while in 2004 and 2005 intercropping in strips was efficient with late maturity hybrids, especially in relation to weed fresh weight., Jedna od prednosti združivanja useva jeste smanjenje broja i mase korova, naročito višegodišnjih. U prve dve godine ispitivanja (2003. i 2004), broj višegodišnjih korova i sveža masa korova bila je manja u oba prostorna rasporeda u združenim u odnosu na čiste useve kukuruza i soje. Međutim, u 2005. godini, samo je prostorni raspored u trakama ispoljio efikasnost u pogledu sveže mase korova po jedinici površine. U sušnoj, 2003. godini, prednost je bila na strani združivanja u naizmeničnim redovima, a u 2004. i 2005. godini, veću efikasnost je ispoljio drugi prostorni raspored - trake. Združivanje useva je povoljnije delovalo na kukuruz, dok je kod useva soje pozitivan efekat združivanja najuočljiviji u 2005. godini, posebno u trakama, a uglavnom se odnosi na broj jedinki korova. Zakorovljenost čistih useva kukuruza se smanjivala sa povećanjem dužine vegetacionog perioda ispitivanih hibrida kukuruza. U združenim usevima takva pravilnost je ispoljena u 2003. godini, u oba prostorna rasporeda, dok je u 2004. i 2005. godini, združivanje u trakama sa kasnostasnijim hibridima kukuruza ispoljilo efikasnost, posebno u pogledu sveže mase korova.",
publisher = "Herbološko društvo Srbije",
journal = "Acta herbologica",
title = "The effect of plant arrangement pattern and hybrids on weediness of a maize and soybean intercropping system, Uticaj prostornog rasporeda i hibrida na zakorovljenost združenog useva kukuruza i soje",
volume = "17",
number = "2",
pages = "67-72",
url = "https://hdl.handle.net/21.15107/rcub_rik_229"
}

Dolijanović, Ž., Oljača, S., Kovačević, D., Simić, M.,& Momirović, N.. (2008). The effect of plant arrangement pattern and hybrids on weediness of a maize and soybean intercropping system. in Acta herbologica
Herbološko društvo Srbije., 17(2), 67-72.
https://hdl.handle.net/21.15107/rcub_rik_229

Dolijanović Ž, Oljača S, Kovačević D, Simić M, Momirović N. The effect of plant arrangement pattern and hybrids on weediness of a maize and soybean intercropping system. in Acta herbologica. 2008;17(2):67-72.
https://hdl.handle.net/21.15107/rcub_rik_229 .

Dolijanović, Željko, Oljača, Snežana, Kovačević, Dušan, Simić, Milena, Momirović, Nebojša, "The effect of plant arrangement pattern and hybrids on weediness of a maize and soybean intercropping system" in Acta herbologica, 17, no. 2 (2008):67-72,
https://hdl.handle.net/21.15107/rcub_rik_229 .

TY  - JOUR
AU  - Dolijanović, Željko
AU  - Oljača, Snežana
AU  - Kovačević, Dušan
AU  - Simić, Milena
PY  - 2007
UR  - http://rik.mrizp.rs/handle/123456789/161
AB  - Weeds have been a limiting factor in agriculture since the beginning of its development. With the intensive cultivation of certain corps, weeds, due to their great adaptability, have evolved to be more or less resistant to common systems of suppression. This weed resistance has lead to the increased use of herbicides, which furthermore has increased the total production costs and risks to the environment and human health. Therefore, other, alternative measures for weed suppression should be applied. Weed control measures are one of the natural ways of solving problems related to crop weediness, which can be achieved by special systems of cropping in which intercrops have an important role. The aim of this study was to determine the effects of different maize hybrids and spatial maize-soybean intercrop patterns on the floristic composition of the weed community in spring. The trial was carried out according to the additive intercropping system under rainfed conditions in the experimental filed of the Maize Research Institute, Zemun Polje on chernozem in 2003 and 2004. The weed community in the maize-soybean intercrop consisted of 15 weed species during the two-year studies. Solanum nigrum (L.) and Amaranthus retroflexus (L.) were dominant annual weed species, while Sorghum halepense (L.) Pers. prevailed among perennial weed species. The greatest, i.e. lowest number and weight of weed species were measured in monocrops, i.e. in maize-soybean intercrop sown in alternate rows (29.3 m-2), respectively.
AB  - Korovi su oduvek bili ograničavajući faktor poljoprivredne proizvodnje, od samih njenih početaka pa do danas. Intenziviranjem gajenja pojedinih useva korovi su, zahvaljujući velikoj sposobnosti prilagođavanja, postali manje-više, otporni na uobičajene sisteme suzbijanja. Otpornost korova je dovela do povećane upotrebe herbicida, što je, takođe, povećalo ukupne troškove proizvodnje i rizik za životnu sredinu i zdravlje samih ljudi. Zbog toga je potrebno primeniti i druge, alternativne mere suzbijanja korova. Jedan od prirodnih načina rešavanja problema zakorovljenosti useva jesu mere kontrole korova, što se može postići posebnim sistemima zemljoradnje, u kojima združeni usevi zauzimaju važno mesto. Cilj ovog rada bio je da se utvrdi uticaj različitih hibrida kukuruza i prostornog rasporeda kukuruza i soje u združenom usevu na floristički sastav korovske sinuzije u prolećnom aspektu. Ispitivanje je obavljeno na oglednom polju Instituta za kukuruz u Zemun Polju na černozemu u 2003. i 2004. godini. Ogled je izveden po sistemu aditivnog načina združivanja (additive intercropping system) u uslovima prirodnog vodnog režima. 	Korovsku sinuziju združenih useva kukuruza i soje tokom dvogodišnjih ispitivanja činilo je 15 vrsta korova. Dominantne korovske vrste bile su: Solanum nigrum (L.) i Amaranthus retroflexus (L.) od jednogodišnjih, i Sorghum halepense (L.) Pers. od višegodišnjih. Najveći broj jedinki i najveća masa korova izmereni su u čistim usevima, a najmanji u združenom usevu kukuruza i soje združivanih po principu naizmeničnih redova (29,3 po m2).
PB  - Savez poljoprivrednih inženjera i tehničara, Beograd
T2  - Journal of Scientific Agricultural Research
T1  - The distribution of weeds in the maize-soybean intercrop
T1  - Zastupljenost korova u združenom usevu kukuruza i soje
VL  - 68
IS  - 4
SP  - 51
EP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_rik_161
ER  - 

@article{
author = "Dolijanović, Željko and Oljača, Snežana and Kovačević, Dušan and Simić, Milena",
year = "2007",
abstract = "Weeds have been a limiting factor in agriculture since the beginning of its development. With the intensive cultivation of certain corps, weeds, due to their great adaptability, have evolved to be more or less resistant to common systems of suppression. This weed resistance has lead to the increased use of herbicides, which furthermore has increased the total production costs and risks to the environment and human health. Therefore, other, alternative measures for weed suppression should be applied. Weed control measures are one of the natural ways of solving problems related to crop weediness, which can be achieved by special systems of cropping in which intercrops have an important role. The aim of this study was to determine the effects of different maize hybrids and spatial maize-soybean intercrop patterns on the floristic composition of the weed community in spring. The trial was carried out according to the additive intercropping system under rainfed conditions in the experimental filed of the Maize Research Institute, Zemun Polje on chernozem in 2003 and 2004. The weed community in the maize-soybean intercrop consisted of 15 weed species during the two-year studies. Solanum nigrum (L.) and Amaranthus retroflexus (L.) were dominant annual weed species, while Sorghum halepense (L.) Pers. prevailed among perennial weed species. The greatest, i.e. lowest number and weight of weed species were measured in monocrops, i.e. in maize-soybean intercrop sown in alternate rows (29.3 m-2), respectively., Korovi su oduvek bili ograničavajući faktor poljoprivredne proizvodnje, od samih njenih početaka pa do danas. Intenziviranjem gajenja pojedinih useva korovi su, zahvaljujući velikoj sposobnosti prilagođavanja, postali manje-više, otporni na uobičajene sisteme suzbijanja. Otpornost korova je dovela do povećane upotrebe herbicida, što je, takođe, povećalo ukupne troškove proizvodnje i rizik za životnu sredinu i zdravlje samih ljudi. Zbog toga je potrebno primeniti i druge, alternativne mere suzbijanja korova. Jedan od prirodnih načina rešavanja problema zakorovljenosti useva jesu mere kontrole korova, što se može postići posebnim sistemima zemljoradnje, u kojima združeni usevi zauzimaju važno mesto. Cilj ovog rada bio je da se utvrdi uticaj različitih hibrida kukuruza i prostornog rasporeda kukuruza i soje u združenom usevu na floristički sastav korovske sinuzije u prolećnom aspektu. Ispitivanje je obavljeno na oglednom polju Instituta za kukuruz u Zemun Polju na černozemu u 2003. i 2004. godini. Ogled je izveden po sistemu aditivnog načina združivanja (additive intercropping system) u uslovima prirodnog vodnog režima. 	Korovsku sinuziju združenih useva kukuruza i soje tokom dvogodišnjih ispitivanja činilo je 15 vrsta korova. Dominantne korovske vrste bile su: Solanum nigrum (L.) i Amaranthus retroflexus (L.) od jednogodišnjih, i Sorghum halepense (L.) Pers. od višegodišnjih. Najveći broj jedinki i najveća masa korova izmereni su u čistim usevima, a najmanji u združenom usevu kukuruza i soje združivanih po principu naizmeničnih redova (29,3 po m2).",
publisher = "Savez poljoprivrednih inženjera i tehničara, Beograd",
journal = "Journal of Scientific Agricultural Research",
title = "The distribution of weeds in the maize-soybean intercrop, Zastupljenost korova u združenom usevu kukuruza i soje",
volume = "68",
number = "4",
pages = "51-62",
url = "https://hdl.handle.net/21.15107/rcub_rik_161"
}

Dolijanović, Ž., Oljača, S., Kovačević, D.,& Simić, M.. (2007). The distribution of weeds in the maize-soybean intercrop. in Journal of Scientific Agricultural Research
Savez poljoprivrednih inženjera i tehničara, Beograd., 68(4), 51-62.
https://hdl.handle.net/21.15107/rcub_rik_161

Dolijanović Ž, Oljača S, Kovačević D, Simić M. The distribution of weeds in the maize-soybean intercrop. in Journal of Scientific Agricultural Research. 2007;68(4):51-62.
https://hdl.handle.net/21.15107/rcub_rik_161 .

Dolijanović, Željko, Oljača, Snežana, Kovačević, Dušan, Simić, Milena, "The distribution of weeds in the maize-soybean intercrop" in Journal of Scientific Agricultural Research, 68, no. 4 (2007):51-62,
https://hdl.handle.net/21.15107/rcub_rik_161 .

TY  - JOUR
AU  - Dolijanović, Željko
AU  - Kovačević, Dušan
AU  - Oljača, Snežana
AU  - Broćić, Zoran
AU  - Simić, Milena
PY  - 2006
UR  - http://rik.mrizp.rs/handle/123456789/147
AB  - Due to the absolute dominance of maize in a sowing structure of the arable areas, maize continuous cropping is still very frequent. It is followed by a two-crop rotation (winter wheat-maize), and then by a very favorable, ever more presented, three-crop rotation (winter wheat-maize-soybean). Nevertheless, maize continuous cropping is considered questionable due to an occurrence of a dangerous pest - western corn rootworm (Diabrotica virgifera virgifera La Conte), which is for now efficiently suppressed only by the crop rotation. This objective of this study was to observe effects of the two- and three-crop rotation on the grain yield in comparison with continuous cropping of winter wheat and maize during the period 2000-2004. Winter wheat and maize were grown on leached chernozem under rainfed conditions. The analysis of variance of the winter wheat and maize yield shows significant differences over years of investigation. The highest (4.30 t ha-1), i.e. lowest (3.70 t ha-1) yield of winter wheat in continuous cropping was obtained in 2001 and dry 2003, respectively. Winter wheat grain yield in the two-crop rotation (4.10 t ha-1) and the three- crop rotation (4.11 t ha-1) was statistically very significantly higher than the grain yield recorded in continuous cropping (3.70 t ha-1). Maize grain yield in continuous cropping (6.89 t ha-1) in the investigation period was statistically very significantly lower than the grain yield in the two-crop rotation (7.44 t ha-1) and the three-crop rotation (7.61 t ha-1).
AB  - Zbog apsolutne dominacije kukuruza na oraničnim površinama u setvenoj strukturi, monokultura kukuruza, je i dalje jako česta pojava. Na drugom mestu je dvopoljni plodored (ozima pšenica - kukuruz), a ono što je vrlo pozitivno je sve zastupljeniji tropoljni plodored, u čiji sastav ulazi i soja. Monokultura kukuruza je dobrim delom dovedena u pitanje, prvenstveno zbog pojave opasne štetočine - kukuruzove zlatice (Diabrotica virgifera virgifera La Conte) jer jedina prava i efikasna mera za suzbijanje ove vrste, za sada, je plodored. U ovom radu je ispitivan uticaj gajenja pšenice i kukuruza u dvopoljnom i tropoljnom plodoredu u odnosu na prinos ovih useva u monokulturi, u periodu od 2000 do 2005. Tip zemljišta na kome su gajeni ovi usevi, u uslovima prirodnog vodnog režima, je izluženi černozem. Na osnovu statističke analize dobijenih rezultata, došlo se do zaključka da su prinosi ozime pšenice i kukuruza u ispitivanim godinama bili statistički značajno različiti. Najviši prinos ozime pšenice u monokulturi dobijen je u 2001. godini (4,30 t/ha), a najniži u sušnoj 2003. godini (2,90 t/ha). Dobijeni prosečni prinosi zrna pšenice u dvopoljnom (4,15 t/ha) i tropoljnom plodoredu (4,19 t/ha) su se statistički vrlo značajno razlikovali od prinosa ostvarenog gajenjem ovog useva u monokulturi (3,77 t/ha). Prosečan prinos zrna kukuruza u monokulturi za period istraživanja (6,94 t/ha) je bio statistički vrlo značajno niži u odnosu na prinos dobijen u dvopoljnom (7,73 t/ha) i tropoljnom (8,11 t/ha).
PB  - Savez poljoprivrednih inženjera i tehničara, Beograd
T2  - Journal of Scientific Agricultural Research
T1  - The yield grain of winter wheat and maize in continuous cropping, two- and three-crop rotation
T1  - Prinos zrna ozime pšenice i kukuruza u monokulturi, dvopoljnom i tropoljnom plodoredu
VL  - 67
IS  - 1
SP  - 81
EP  - 90
UR  - https://hdl.handle.net/21.15107/rcub_rik_147
ER  - 

@article{
author = "Dolijanović, Željko and Kovačević, Dušan and Oljača, Snežana and Broćić, Zoran and Simić, Milena",
year = "2006",
abstract = "Due to the absolute dominance of maize in a sowing structure of the arable areas, maize continuous cropping is still very frequent. It is followed by a two-crop rotation (winter wheat-maize), and then by a very favorable, ever more presented, three-crop rotation (winter wheat-maize-soybean). Nevertheless, maize continuous cropping is considered questionable due to an occurrence of a dangerous pest - western corn rootworm (Diabrotica virgifera virgifera La Conte), which is for now efficiently suppressed only by the crop rotation. This objective of this study was to observe effects of the two- and three-crop rotation on the grain yield in comparison with continuous cropping of winter wheat and maize during the period 2000-2004. Winter wheat and maize were grown on leached chernozem under rainfed conditions. The analysis of variance of the winter wheat and maize yield shows significant differences over years of investigation. The highest (4.30 t ha-1), i.e. lowest (3.70 t ha-1) yield of winter wheat in continuous cropping was obtained in 2001 and dry 2003, respectively. Winter wheat grain yield in the two-crop rotation (4.10 t ha-1) and the three- crop rotation (4.11 t ha-1) was statistically very significantly higher than the grain yield recorded in continuous cropping (3.70 t ha-1). Maize grain yield in continuous cropping (6.89 t ha-1) in the investigation period was statistically very significantly lower than the grain yield in the two-crop rotation (7.44 t ha-1) and the three-crop rotation (7.61 t ha-1)., Zbog apsolutne dominacije kukuruza na oraničnim površinama u setvenoj strukturi, monokultura kukuruza, je i dalje jako česta pojava. Na drugom mestu je dvopoljni plodored (ozima pšenica - kukuruz), a ono što je vrlo pozitivno je sve zastupljeniji tropoljni plodored, u čiji sastav ulazi i soja. Monokultura kukuruza je dobrim delom dovedena u pitanje, prvenstveno zbog pojave opasne štetočine - kukuruzove zlatice (Diabrotica virgifera virgifera La Conte) jer jedina prava i efikasna mera za suzbijanje ove vrste, za sada, je plodored. U ovom radu je ispitivan uticaj gajenja pšenice i kukuruza u dvopoljnom i tropoljnom plodoredu u odnosu na prinos ovih useva u monokulturi, u periodu od 2000 do 2005. Tip zemljišta na kome su gajeni ovi usevi, u uslovima prirodnog vodnog režima, je izluženi černozem. Na osnovu statističke analize dobijenih rezultata, došlo se do zaključka da su prinosi ozime pšenice i kukuruza u ispitivanim godinama bili statistički značajno različiti. Najviši prinos ozime pšenice u monokulturi dobijen je u 2001. godini (4,30 t/ha), a najniži u sušnoj 2003. godini (2,90 t/ha). Dobijeni prosečni prinosi zrna pšenice u dvopoljnom (4,15 t/ha) i tropoljnom plodoredu (4,19 t/ha) su se statistički vrlo značajno razlikovali od prinosa ostvarenog gajenjem ovog useva u monokulturi (3,77 t/ha). Prosečan prinos zrna kukuruza u monokulturi za period istraživanja (6,94 t/ha) je bio statistički vrlo značajno niži u odnosu na prinos dobijen u dvopoljnom (7,73 t/ha) i tropoljnom (8,11 t/ha).",
publisher = "Savez poljoprivrednih inženjera i tehničara, Beograd",
journal = "Journal of Scientific Agricultural Research",
title = "The yield grain of winter wheat and maize in continuous cropping, two- and three-crop rotation, Prinos zrna ozime pšenice i kukuruza u monokulturi, dvopoljnom i tropoljnom plodoredu",
volume = "67",
number = "1",
pages = "81-90",
url = "https://hdl.handle.net/21.15107/rcub_rik_147"
}

Dolijanović, Ž., Kovačević, D., Oljača, S., Broćić, Z.,& Simić, M.. (2006). The yield grain of winter wheat and maize in continuous cropping, two- and three-crop rotation. in Journal of Scientific Agricultural Research
Savez poljoprivrednih inženjera i tehničara, Beograd., 67(1), 81-90.
https://hdl.handle.net/21.15107/rcub_rik_147

Dolijanović Ž, Kovačević D, Oljača S, Broćić Z, Simić M. The yield grain of winter wheat and maize in continuous cropping, two- and three-crop rotation. in Journal of Scientific Agricultural Research. 2006;67(1):81-90.
https://hdl.handle.net/21.15107/rcub_rik_147 .

Dolijanović, Željko, Kovačević, Dušan, Oljača, Snežana, Broćić, Zoran, Simić, Milena, "The yield grain of winter wheat and maize in continuous cropping, two- and three-crop rotation" in Journal of Scientific Agricultural Research, 67, no. 1 (2006):81-90,
https://hdl.handle.net/21.15107/rcub_rik_147 .

TY  - JOUR
AU  - Dolijanović, Željko
AU  - Kovačević, Dušan
AU  - Oljača, Snežana
AU  - Simić, Milena
AU  - Jovanović, Života
PY  - 2005
UR  - http://rik.mrizp.rs/handle/123456789/107
AB  - In recent times little attention has been paid to the crop rotation, as a system of utilization of the arable land under different crops (mainly annual ones). Reasons for the introduction of the crop rotation are numerous, and they are classified into biological, agro technical and organizational-economical ones. According to various research works in the World there are evidences that a proper crop rotation can solve about 70% problems related to pests and diseases. This paper deals with effects of the three- and four-crop rotation on the grain yield compared with winter wheat continuous cropping. Grain yields were recorded in the regular crop rotation experiment set up in the experimental field "Radmilovac" of the Faculty of Agriculture, during the period of 2000-2004. In the three-crop rotation variant following crops were maize, soybean and winter wheat. The four-crop rotation encompassed maize, winter wheat, red clover and spring barley + red clover. The winter wheat cultivars Pobeda grown under rainfed conditions on leached chernozem was studied. The analysis of variance of the winter wheat yield showed significant differences among years of investigation. The highest yield of winter wheat (4.53 t ha"1) was obtained in 2001, while the lowest one (3.05 t ha"1) was recorded in dry 2003. Grain yield of winter wheat in continuous cropping (3.70 t ha"1) was statistically very significantly lower than grain yield in the three- (4.11 t ha"1) and four-crop rotation (4.07 t ha"1), while difference in grain yield between the three- and the four-crop rotation variants was no statistically significant.
AB  - Plodoredu kao sistemu korišćenja obradivih površina gajenjem različitih useva (uglavnom jednogodišnjih) se u poslednje vreme pridaje mali značaj. Razlozi za uvođenje plodoreda su brojni, a dele se na biološke, agrotehničke i organizaciono-ekonomske. Prema mnogim istraživanjima u svetu došlo se do zaključka da se pravilnim plodoredom može rešiti oko 70 % problema koji se odnose na bolesti i štetočine u ratarstvu. U ovom radu je ispitivan uticaj gajenja pšenice u tropoljnom i četvoropoljnom plodoredu na prinos u odnosu na gajenje pšenice u monokulturi. Prinosi su mereni u okviru redovnih plodorednih polja na oglednom školskom dobru Poljoprivrednog fakulteta (Radmilovcu) u 2000,2001,2002,2003. i 2004. godini. U tropoljnom plodoredu zastupljeni su kukuruz, soja i ozima pšenica, a u červoropoljnom plodoredu kukuruz, ozima pšenica, crvena detelina i jari ječam+crvena detelina. Tip zemljišta na kome je gajena sorta ozime pšenice Pobeda, u uslovima prirodnog vodnog režima je izluženi černozem. Na osnovu statističke analize dobijenih rezultata, došlo se do zaključka da su prinosi ozime pšenice u ispitivanim godinama bili statistički značajno različiti. Najviši prinos dobijen je u 2001. godini (4,53 t/ha) a najmanji u sušnoj 2003. godini (3,05 t/ha). Prinos ozime pšenice u monokulturi (3,70 t/ha) je bio statistički vrlo značajno niži u odnosu na prinos dobijen u tropoljnom (4,11 t/ha) i četveropoljnom plodoredu (4,07 t/ha), dok razlika u prinosu ostvarenom u tropoljnom i četveropoljnom plodoredu nije bila statistički značajna.
PB  - Savez poljoprivrednih inženjera i tehničara, Beograd
T2  - Journal of Scientific Agricultural Research
T1  - The importance and the role of the crop rotation in the winter wheat production
T1  - Značaj i uloga plodoreda u proizvodnji pšenice
VL  - 66
IS  - 3
SP  - 65
EP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_rik_107
ER  - 

@article{
author = "Dolijanović, Željko and Kovačević, Dušan and Oljača, Snežana and Simić, Milena and Jovanović, Života",
year = "2005",
abstract = "In recent times little attention has been paid to the crop rotation, as a system of utilization of the arable land under different crops (mainly annual ones). Reasons for the introduction of the crop rotation are numerous, and they are classified into biological, agro technical and organizational-economical ones. According to various research works in the World there are evidences that a proper crop rotation can solve about 70% problems related to pests and diseases. This paper deals with effects of the three- and four-crop rotation on the grain yield compared with winter wheat continuous cropping. Grain yields were recorded in the regular crop rotation experiment set up in the experimental field "Radmilovac" of the Faculty of Agriculture, during the period of 2000-2004. In the three-crop rotation variant following crops were maize, soybean and winter wheat. The four-crop rotation encompassed maize, winter wheat, red clover and spring barley + red clover. The winter wheat cultivars Pobeda grown under rainfed conditions on leached chernozem was studied. The analysis of variance of the winter wheat yield showed significant differences among years of investigation. The highest yield of winter wheat (4.53 t ha"1) was obtained in 2001, while the lowest one (3.05 t ha"1) was recorded in dry 2003. Grain yield of winter wheat in continuous cropping (3.70 t ha"1) was statistically very significantly lower than grain yield in the three- (4.11 t ha"1) and four-crop rotation (4.07 t ha"1), while difference in grain yield between the three- and the four-crop rotation variants was no statistically significant., Plodoredu kao sistemu korišćenja obradivih površina gajenjem različitih useva (uglavnom jednogodišnjih) se u poslednje vreme pridaje mali značaj. Razlozi za uvođenje plodoreda su brojni, a dele se na biološke, agrotehničke i organizaciono-ekonomske. Prema mnogim istraživanjima u svetu došlo se do zaključka da se pravilnim plodoredom može rešiti oko 70 % problema koji se odnose na bolesti i štetočine u ratarstvu. U ovom radu je ispitivan uticaj gajenja pšenice u tropoljnom i četvoropoljnom plodoredu na prinos u odnosu na gajenje pšenice u monokulturi. Prinosi su mereni u okviru redovnih plodorednih polja na oglednom školskom dobru Poljoprivrednog fakulteta (Radmilovcu) u 2000,2001,2002,2003. i 2004. godini. U tropoljnom plodoredu zastupljeni su kukuruz, soja i ozima pšenica, a u červoropoljnom plodoredu kukuruz, ozima pšenica, crvena detelina i jari ječam+crvena detelina. Tip zemljišta na kome je gajena sorta ozime pšenice Pobeda, u uslovima prirodnog vodnog režima je izluženi černozem. Na osnovu statističke analize dobijenih rezultata, došlo se do zaključka da su prinosi ozime pšenice u ispitivanim godinama bili statistički značajno različiti. Najviši prinos dobijen je u 2001. godini (4,53 t/ha) a najmanji u sušnoj 2003. godini (3,05 t/ha). Prinos ozime pšenice u monokulturi (3,70 t/ha) je bio statistički vrlo značajno niži u odnosu na prinos dobijen u tropoljnom (4,11 t/ha) i četveropoljnom plodoredu (4,07 t/ha), dok razlika u prinosu ostvarenom u tropoljnom i četveropoljnom plodoredu nije bila statistički značajna.",
publisher = "Savez poljoprivrednih inženjera i tehničara, Beograd",
journal = "Journal of Scientific Agricultural Research",
title = "The importance and the role of the crop rotation in the winter wheat production, Značaj i uloga plodoreda u proizvodnji pšenice",
volume = "66",
number = "3",
pages = "65-72",
url = "https://hdl.handle.net/21.15107/rcub_rik_107"
}

Dolijanović, Ž., Kovačević, D., Oljača, S., Simić, M.,& Jovanović, Ž.. (2005). The importance and the role of the crop rotation in the winter wheat production. in Journal of Scientific Agricultural Research
Savez poljoprivrednih inženjera i tehničara, Beograd., 66(3), 65-72.
https://hdl.handle.net/21.15107/rcub_rik_107

Dolijanović Ž, Kovačević D, Oljača S, Simić M, Jovanović Ž. The importance and the role of the crop rotation in the winter wheat production. in Journal of Scientific Agricultural Research. 2005;66(3):65-72.
https://hdl.handle.net/21.15107/rcub_rik_107 .

Dolijanović, Željko, Kovačević, Dušan, Oljača, Snežana, Simić, Milena, Jovanović, Života, "The importance and the role of the crop rotation in the winter wheat production" in Journal of Scientific Agricultural Research, 66, no. 3 (2005):65-72,
https://hdl.handle.net/21.15107/rcub_rik_107 .

TY  - JOUR
AU  - Simić, Milena
AU  - Stefanović, Lidija
AU  - Kovačević, Dušan
AU  - Šinžar, Borivoj
AU  - Momirović, Nebojša
AU  - Oljača, Snežana
PY  - 2004
UR  - http://rik.mrizp.rs/handle/123456789/78
AB  - A joint effect of four cropping practices (irrigation, crop density, hybrid and herbicide application) on maize weed infestation, expressed by fresh mass of weeds (g m-2), was monitored in a four year period (1996-1999). Fresh mass of weeds was higher on the average for all years in the area under irrigation than in the area under rainfed conditions and it statistically significantly decreased under increased crop densities. Fresh mass of weeds was significantly higher in the control than in the herbicide treated variant. The increased crop density and herbicide application interaction affected fresh mass of weeds in such a way that it was the lowest in the highest density in the treated variant almost in each year of investigation. In addition, fresh mass of weeds was affected by the herbicide application and maize hybrid interaction.
AB  - U četvorogodišnjem periodu 1996-1999. godine ispitivan je uticaj kombinovane primene četiri mere gajenja (navodnjavanja, gustine useva, hibrida i primene herbicida) na zakorovljenost kukuruza, izraženu kroz svežu masu korova (g m-2). Sveža masa korova je, prosečno za sve godine, bila veća na površini u navodnjavanju i statistički se značajno smanjivala sa povećanjem gustine gajenja. Sveža masa korova je bila statistički vrlo značajno veća na kontrolnoj u odnosu na herbicidima tretiranu varijantu. Ukupna sveža masa korova, u uslovima prirodnog vodnog režima, bila je veća u hibridu ZPSC 704, a u uslovima navodnjavanja u hibridu ZPSC 42A. Povećana gustina gajenja i primena herbicida u interakciji su uticale da sveža masa korova bude najmanja u najvećoj gustini, na tretiranoj varijanti skoro u svim godinama ispitivanja. Na svežu masu korova, uticala je i interakcija primene herbicida sa hibridom kukuruza. Dobijeni rezultati idu u prilog pretpostavci da se, i u našim uslovima, primenom vise mera kao delà integralnog sistema, uz primenu herbicida, mogu uspešno suzbijati korovi u kukuruzu.
PB  - Herbološko društvo Srbije
T2  - Acta herbologica
T1  - Integrated weed management system in maize weed control
T1  - Integralni sistem mera u kontroli zakorovljenosti kukuruza
VL  - 13
IS  - 2
SP  - 437
EP  - 442
UR  - https://hdl.handle.net/21.15107/rcub_rik_78
ER  - 

@article{
author = "Simić, Milena and Stefanović, Lidija and Kovačević, Dušan and Šinžar, Borivoj and Momirović, Nebojša and Oljača, Snežana",
year = "2004",
abstract = "A joint effect of four cropping practices (irrigation, crop density, hybrid and herbicide application) on maize weed infestation, expressed by fresh mass of weeds (g m-2), was monitored in a four year period (1996-1999). Fresh mass of weeds was higher on the average for all years in the area under irrigation than in the area under rainfed conditions and it statistically significantly decreased under increased crop densities. Fresh mass of weeds was significantly higher in the control than in the herbicide treated variant. The increased crop density and herbicide application interaction affected fresh mass of weeds in such a way that it was the lowest in the highest density in the treated variant almost in each year of investigation. In addition, fresh mass of weeds was affected by the herbicide application and maize hybrid interaction., U četvorogodišnjem periodu 1996-1999. godine ispitivan je uticaj kombinovane primene četiri mere gajenja (navodnjavanja, gustine useva, hibrida i primene herbicida) na zakorovljenost kukuruza, izraženu kroz svežu masu korova (g m-2). Sveža masa korova je, prosečno za sve godine, bila veća na površini u navodnjavanju i statistički se značajno smanjivala sa povećanjem gustine gajenja. Sveža masa korova je bila statistički vrlo značajno veća na kontrolnoj u odnosu na herbicidima tretiranu varijantu. Ukupna sveža masa korova, u uslovima prirodnog vodnog režima, bila je veća u hibridu ZPSC 704, a u uslovima navodnjavanja u hibridu ZPSC 42A. Povećana gustina gajenja i primena herbicida u interakciji su uticale da sveža masa korova bude najmanja u najvećoj gustini, na tretiranoj varijanti skoro u svim godinama ispitivanja. Na svežu masu korova, uticala je i interakcija primene herbicida sa hibridom kukuruza. Dobijeni rezultati idu u prilog pretpostavci da se, i u našim uslovima, primenom vise mera kao delà integralnog sistema, uz primenu herbicida, mogu uspešno suzbijati korovi u kukuruzu.",
publisher = "Herbološko društvo Srbije",
journal = "Acta herbologica",
title = "Integrated weed management system in maize weed control, Integralni sistem mera u kontroli zakorovljenosti kukuruza",
volume = "13",
number = "2",
pages = "437-442",
url = "https://hdl.handle.net/21.15107/rcub_rik_78"
}

Simić, M., Stefanović, L., Kovačević, D., Šinžar, B., Momirović, N.,& Oljača, S.. (2004). Integrated weed management system in maize weed control. in Acta herbologica
Herbološko društvo Srbije., 13(2), 437-442.
https://hdl.handle.net/21.15107/rcub_rik_78

Simić M, Stefanović L, Kovačević D, Šinžar B, Momirović N, Oljača S. Integrated weed management system in maize weed control. in Acta herbologica. 2004;13(2):437-442.
https://hdl.handle.net/21.15107/rcub_rik_78 .

Simić, Milena, Stefanović, Lidija, Kovačević, Dušan, Šinžar, Borivoj, Momirović, Nebojša, Oljača, Snežana, "Integrated weed management system in maize weed control" in Acta herbologica, 13, no. 2 (2004):437-442,
https://hdl.handle.net/21.15107/rcub_rik_78 .