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IWMS in maize weed control - the role of crop rotation and herbicides

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2021
bitstream_4823.pdf (781.8Kb)
Authors
Simić, Milena
Brankov, Milan
Dragičević, Vesna
Tolimir, Miodrag
Šenk, Milena
Tabaković, Marijenka
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Abstract
The Integrated Weed Management System has been applied with variable success in many crops since its establishment in 1991. Environmental awareness, growing problems with herbicide resistance and a lack of new active ingredients, resulted in weed control not only with chemicals but also other measures. The aim of the study was to examine long-term IWM measures - combined application of crop rotation and herbicides on weed biomass and maize yield. The trial has been conducted since 2009, encompassing maize continuous cropping (MC), maize-winter wheat (MW), maize-soybean-winter wheat (MSW) and maize-winter wheat-soybean (MWS) rotations. The isoxaflutole + acetochlor mixture at recommended (RR), half of the recommended rate (0.5RR) and no-herbicides (C) were preemergence treatments applied in maize. Weed biomass was recorded from two randomly selected sites in the middle of each plot by square meter method, 6-7 weeks after the application of herbicides. Maize grain yield was calculated... at 14% moisture at the end of the growing season. The data were processed by ANOVA and LSD-test (α = 0.05). According to the 10-year average, weed biomass had decreased with the application of herbicide 0.5RR by 69.2%, 90.0%, 83.2% and 70.9% and of RR by 79.2%, 94.2%, 93.9% and 81.3% in MC, MW, MSW and MWS rotation, respectively. Herbicide RR was in average more effective than 0.5RR by 8.8% while the most effective in weed biomass reduction in average for both herbicide rates were MW and MSW rotations - 94.2% and 93.9%, respectively. Herbicide weed control contributed to the grain yield increase even in MC by 31.0% and 43.1% with 0.5RR and RR, respectively, while MSW was the most effective rotation and increased yield by 36.1% and 30.5% with 05.RR and RR, respectively. This indicates a significant correlation between the weed biomass decrease and the maize yield increase, as well as the importance of a preceding crop for maize productivity in integrated crop production systems with reduced herbicide use.

Keywords:
Maize / Weed control / Herbicides rate / Crop rotation / Yield
Source:
International Conference The Frontiers of Science and Technology in Crop Breeding and Production Conference, Belgrade, 8-9 June 2021 - Book of Abstracts, 2021, 61-61
Publisher:
  • Belgrade - Zemun : Maize Research Institute, Zemun Polje

ISBN: 978-86-80383-11-8

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_rik_998
URI
http://rik.mrizp.rs/handle/123456789/998
Collections
  • Радови истраживача / Researchers' publications
Institution/Community
MRIZP
TY  - CONF
AU  - Simić, Milena
AU  - Brankov, Milan
AU  - Dragičević, Vesna
AU  - Tolimir, Miodrag
AU  - Šenk, Milena
AU  - Tabaković, Marijenka
PY  - 2021
UR  - http://rik.mrizp.rs/handle/123456789/998
AB  - The Integrated Weed Management System has been applied with variable success in many crops since its establishment in 1991. Environmental awareness, growing problems with herbicide resistance and a lack of new active ingredients, resulted in weed control not only with chemicals but also other measures. The aim of the study was to examine long-term IWM
measures - combined application of crop rotation and herbicides on weed biomass and maize yield. The trial has been conducted since 2009, encompassing maize continuous cropping (MC), maize-winter wheat (MW), maize-soybean-winter wheat (MSW) and maize-winter wheat-soybean 
(MWS) rotations. The isoxaflutole + acetochlor mixture at recommended (RR), half of the recommended rate (0.5RR) and no-herbicides (C) were preemergence treatments applied in maize. Weed biomass was recorded from two randomly selected sites in the middle of each plot by square meter method, 6-7 weeks after the application of herbicides. Maize grain yield was calculated at 14% moisture at the end of the growing season. The data were processed by 
ANOVA and LSD-test (α = 0.05). According to the 10-year average, weed biomass had decreased with the application of herbicide 0.5RR by 69.2%, 90.0%, 83.2% and 70.9% and of RR by 79.2%, 94.2%, 93.9% and 81.3% in MC, MW, MSW and MWS rotation, respectively. Herbicide RR was in 
average more effective than 0.5RR by 8.8% while the most effective in weed biomass reduction in average for both herbicide rates were MW and MSW rotations - 94.2% and 93.9%, respectively. Herbicide weed control contributed to the grain yield increase even in MC by 31.0% and 43.1% with 0.5RR and RR, respectively, while MSW was the most effective rotation and increased 
yield by 36.1% and 30.5% with 05.RR and RR, respectively. This indicates a significant correlation between the weed biomass decrease and the maize yield increase, as well as the importance of a preceding crop for maize productivity in integrated crop production systems with reduced herbicide use.
PB  - Belgrade - Zemun : Maize Research Institute, Zemun Polje
C3  - International Conference The Frontiers of Science and  Technology in Crop Breeding and  Production Conference, Belgrade, 8-9 June 2021 - Book of Abstracts
T1  - IWMS in maize weed control - the role of crop rotation and herbicides
SP  - 61
EP  - 61
UR  - https://hdl.handle.net/21.15107/rcub_rik_998
ER  - 
@conference{
author = "Simić, Milena and Brankov, Milan and Dragičević, Vesna and Tolimir, Miodrag and Šenk, Milena and Tabaković, Marijenka",
year = "2021",
abstract = "The Integrated Weed Management System has been applied with variable success in many crops since its establishment in 1991. Environmental awareness, growing problems with herbicide resistance and a lack of new active ingredients, resulted in weed control not only with chemicals but also other measures. The aim of the study was to examine long-term IWM
measures - combined application of crop rotation and herbicides on weed biomass and maize yield. The trial has been conducted since 2009, encompassing maize continuous cropping (MC), maize-winter wheat (MW), maize-soybean-winter wheat (MSW) and maize-winter wheat-soybean 
(MWS) rotations. The isoxaflutole + acetochlor mixture at recommended (RR), half of the recommended rate (0.5RR) and no-herbicides (C) were preemergence treatments applied in maize. Weed biomass was recorded from two randomly selected sites in the middle of each plot by square meter method, 6-7 weeks after the application of herbicides. Maize grain yield was calculated at 14% moisture at the end of the growing season. The data were processed by 
ANOVA and LSD-test (α = 0.05). According to the 10-year average, weed biomass had decreased with the application of herbicide 0.5RR by 69.2%, 90.0%, 83.2% and 70.9% and of RR by 79.2%, 94.2%, 93.9% and 81.3% in MC, MW, MSW and MWS rotation, respectively. Herbicide RR was in 
average more effective than 0.5RR by 8.8% while the most effective in weed biomass reduction in average for both herbicide rates were MW and MSW rotations - 94.2% and 93.9%, respectively. Herbicide weed control contributed to the grain yield increase even in MC by 31.0% and 43.1% with 0.5RR and RR, respectively, while MSW was the most effective rotation and increased 
yield by 36.1% and 30.5% with 05.RR and RR, respectively. This indicates a significant correlation between the weed biomass decrease and the maize yield increase, as well as the importance of a preceding crop for maize productivity in integrated crop production systems with reduced herbicide use.",
publisher = "Belgrade - Zemun : Maize Research Institute, Zemun Polje",
journal = "International Conference The Frontiers of Science and  Technology in Crop Breeding and  Production Conference, Belgrade, 8-9 June 2021 - Book of Abstracts",
title = "IWMS in maize weed control - the role of crop rotation and herbicides",
pages = "61-61",
url = "https://hdl.handle.net/21.15107/rcub_rik_998"
}
Simić, M., Brankov, M., Dragičević, V., Tolimir, M., Šenk, M.,& Tabaković, M.. (2021). IWMS in maize weed control - the role of crop rotation and herbicides. in International Conference The Frontiers of Science and  Technology in Crop Breeding and  Production Conference, Belgrade, 8-9 June 2021 - Book of Abstracts
Belgrade - Zemun : Maize Research Institute, Zemun Polje., 61-61.
https://hdl.handle.net/21.15107/rcub_rik_998
Simić M, Brankov M, Dragičević V, Tolimir M, Šenk M, Tabaković M. IWMS in maize weed control - the role of crop rotation and herbicides. in International Conference The Frontiers of Science and  Technology in Crop Breeding and  Production Conference, Belgrade, 8-9 June 2021 - Book of Abstracts. 2021;:61-61.
https://hdl.handle.net/21.15107/rcub_rik_998 .
Simić, Milena, Brankov, Milan, Dragičević, Vesna, Tolimir, Miodrag, Šenk, Milena, Tabaković, Marijenka, "IWMS in maize weed control - the role of crop rotation and herbicides" in International Conference The Frontiers of Science and  Technology in Crop Breeding and  Production Conference, Belgrade, 8-9 June 2021 - Book of Abstracts (2021):61-61,
https://hdl.handle.net/21.15107/rcub_rik_998 .

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