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Registration Number

0225U003461, (0121U109728) , R & D reports

Title

Theoretically substantiate and develop promising systems of organic farming in relation to climate change in the forest-steppe of Ukraine

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Вивчити поживний режим і динаміку мікробіологічної діяльності в грунті за екстенсивного і органічного ведення землеробства порівняно з перелогом

Head

Dehodiuk Stanislav Е., Доктор сільськогосподарських наук

Registration Date

30-06-2025

Organization

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

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Theoretically substantiate the conduct of organic farming on the model of short-rotation crop rotation on gray forest soil to ensure high yields and quality of crop products.

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 It was determined that with organic fertilization systems based on a biodestructor background and the use of organo-mineral bioactive fertilizers, it is possible to achieve the reproduction of the potential fertility of gray forest soil with a content of total humus of 1.32-1.38%, hydrolyzed nitrogen of 63.0-68.4 mg/kg, mobile forms of phosphorus of 198-235 mg/kg and potassium of 205-232 mg/kg, with indicators in the control without fertilizers of 1.0%, 58.0 mg/kg, 180 and 182 mg/kg, respectively. In the oat agrocenosis under the organic fertilization system (direct effect of 60 t/ha of cattle manure) compared to fallow, there was an increase in the number of ammonifiers, oligonitrophiles and pedotrophs by 1.5-1.8 times, the biomass of microorganisms by 1.3 times, at the same time, the cellulolytic activity of the absorption of mobile nutrients from soil reserves by autochthonous microflora was at the level of fallow indicators. The introduction of 2 t/ha of OMBD-organic contributed to an increase in the number of ammonifying microbiota and micromycetes in the soil by 2.4 times, microbial biomass by 1.7 times, the intensity of CO2 release by soil microbiota by 1.4 times and the transformation of organic matter by 6.1 times compared to fallow. In the winter wheat agrocenosis under the organic fertilization system after the 4th year of applying 60 t/ha of cattle manure, the intensity of soil organic matter transformation increased by 2.2 times compared to fallow. It was established that the use of OMBD-organic at a dose of 2 t/ha in terms of its impact on the formation of crop yields is at the level of the fertilization system, which involves applying 12 t/ha of cattle manure per 1 hectare of arable land, and ensures the yield of winter wheat - 5.18 t/ha, oats - 4.19 and spring barley - 2.87 t/ha, which is 41%, 42 and 46% more compared to the control. The level of profitability, respectively, was 190%, 125 and 162

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2025-06-30