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Registration Number

0225U003425, (0121U109729) , R & D reports

Title

To develop theoretical principles of ecologically balanced fertilizer systems for optimization of mineral nutrition of plants in field crop rotations of the Forest-Steppe zone

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Визначити трансформацію органічної речовини та зміну біологічної і мікробіологічної активності сірого лісового грунту за різних систем удобрення

Head

Dehodiuk Stanislav Е., Доктор сільськогосподарських наук

Registration Date

26-06-2025

Organization

National scientific centre "Institute of Agriculture of the Ukrainian Academy of Agrarian Sciences"

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Develop scientific principles of efficient agriculture in the short-rotation field crop rotation of the Forest-Steppe ecologically balanced fertilizer systems to optimize mineral nutrition of plants and reproduce the fertility of gray forest soil with high productivity and quality of basic products.

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 Based on the results of the research, basic information was obtained regarding the directions of transformation of organic matter, biological and microbiological activity of the soil, agrophysical and agrochemical state of the soil under different fertilization systems. It was determined that with the systematic application of organic and mineral fertilizers, the highest content of total humus - 1.32 and 1.38% was achieved with organo-mineral (12 t/ha cattle manure + N100P60K100) and organic (12 t/ha cattle manure per 1 ha crop rotation area) of fertilization systems with an increase in humus reserves in the arable soil layer to 35.6 (36%) and 37.3 t/ha (42%) compared to the control without fertilizers. It was established that in the arable layer of the soil, the processes of immobilization of mineral nitrogen compounds prevailed during the cultivation of peas and oats, while the processes of mineralization of organic nitrogen prevailed during the cultivation of winter wheat, as well as the introduction of OMBD in the oat agrocenosis. An increase in the level of assimilation of nutrients from soil reserves by microorganisms was found in the agrocenoses of all crops. The introduction of OMBD, cattle manure and the combined use of cattle manure with mineral fertilizers compared to the control and mineral fertilization system contributed to the optimization of the functioning of soil microbiota in the agrocenoses of peas, oats and winter wheat, which was accompanied by an increase in its number by 1.1-4.8 times, intensity decomposition of linen and CO2 emissions by 1.1-1.6 times, as well as intensification of processes of microbial transformation of soil organic matter, especially in the agrocenosis of winter wheat. It was determined that with ecologically balanced fertilization systems, as well as with the introduction of OMBD, the yield of crops of field crop rotation increased: oat grain - by 30-87%, winter wheat - by 38-87% and peas by 26-56% in terms of yield o

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2025-06-26