UDC 633.15+631.82
DOI 10.36461/NP.2023.67.3.007

THE EFFECT OF FOLIAR TOP DRESSING ON THE YIELD FORMATION AND QUALITY OF CORN.
S. A. Semina, Doctor of Agricultural Sciences, Professor; O.N. Kukharev, Doctor of Engineering Sciences, Professor; I.V. Gavryushina, PhD. Biol. sciences, Associate Professor; A.S. Paliychuk, Candidate of Agricultural Sciences, Associate Professor
Penza State Agrarian University,
Penza, Russia, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

In order to increase yields and improve the quality of corn biomass, it is important to search for resource-saving cultivation methods, including the use of biological fertilizers. The article presents the results of the studies conducted on leached heavy loamy chernozem of the forest steppe of the Middle Volga region to study the formation of yield and quality of the green mass of corn, depending on the type of biological fertilizers used for processing vegetative plants. With non-root treatment with Azotovit, the crude mass of the plant increased by 8.0% relative to the control. In the same variant, a larger number of reproductive parts were formed, the increase in the control was 3.8%. Foliar treatment with Azotovit produced an additional 2.8 t/ha of crude biomass, which is 6.1% higher than in the control. In terms of dry biomass harvesting, the variants where crops were treated with Bioazot and Azotovit had the advantage, the increase in dry biomass was 0.4-0.9 t/ha or 2.1-4.5% to the control. Over the years of the experiment, the absolute increase in crude protein in dry biomass in the variants with Azotovit and BIOLAND amounted to 1.18-1.87% to the control. In the same variants, the availability of digestible protein per feed unit increased by 7.18-13.46 g. In terms of digestible protein harvesting, the variants where crops were treated with Bioazot and Azotovit had the advantage, the increase to the variant with water was 122 and 333 kg/ha or 13.3 and 36.3%, respectively. Non-root treatment with Phosphatovit and Bioazot led to a decrease in the energy supply of feed.
Keywords: corn, microbiological fertilizers, yield, protein, fat, metabolic energy

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