The effect of cover crops on the content of protein in grain of sweet maize
Authors
Dolijanović, ŽeljkoDragičević, Vesna

Simić, Milena

Oljača, Snežana
Kovačević, Dušan
Janošević, Biljana
Conference object (Published version)
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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
sup...port 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.
Keywords:
sweet maize / content of protein / microbiological fertilizerSource:
3. International symposium for agriculture and food "ISAF 2017", Ohrid, 18-20.10.2017. - Proceedings, 2018, 72, 2, 31-37Publisher:
- Skoplje : “Ss. Cyril and Methodius" University in Skopje, Faculty of agricultural sciences and food