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Information × Registration Number 0225U004993, (0121U000050) , R & D reports Title 02.02.01.02.F. "Theoretically substantiate highly productive crop rotations in relation to climate change with different specialization of agricultural production in the conditions of the Left Bank Forest-Steppe of Ukraine" popup.stage_title Сформувати наукові основи побудови сівозмін різної ротації та спеціалізації, адаптованих до ґрунтово-кліматичних та організаційно-економічних умов виробництва для забезпечення відтворення родючості ґрунту, підвищення продуктивності і стійкості агроценозів в Лівобережному Лісостепу України Head Shapoval Ivan S., Кандидат сільськогосподарських наук Registration Date 23-12-2025 Organization Cherkasy State The Agricultural Experimental Station of National Scientific Center "Institute of Agriculture of National Academy of Agrarian Sciences of Ukraine" popup.description1 popup.description2 The scientific foundations of building crop rotations of various rotations and specializations, adapted to the soil-climatic and organizational-economic conditions of production to ensure the reproduction of soil fertility, increase the productivity and stability of agrocenoses in the Left Bank Forest Steppe of Ukraine, are substantiated. Optimum crop areas in crop rotation: winter wheat - 30%, sunflower up to 10-20%, corn for grain up to 40%, soybeans - 20%. In four- and five-field crop rotations with grain saturation of 60–80%, including corn 20–50%, there was a higher harvest of fodder units – 9.30–9.66 t/ha, than in crop rotations with early grains – 5.71–6.23 t/ha. The best doses of fertilizers were: for peas P20K40, wheat - N100P60K80, sunflower - N60P60K60, corn - N60P40K60 per 1 ha of crop rotation area. There was a positive balance of nutrients in crop rotation, where 20% of perennial grasses, when applied N31P33K41 per 1 ha of crop rotation area and by-products. On variants without fertilizers, tillage was not inferior to plowing, or prevailed in both crop rotations. With the application of N62Р66K82, plowing was better in terms of yield of fodder units by 0.23–0.56 t/ha. Increases in fodder units from fertilizers were 1.87–2.20 t/ha or 25.5–40.7% for doses of N31Р33K41, 2.61–3.22 t/ha or 47.9–60.7% for doses of N62Р66K82 in grain forage and 38.4–45.1% in grain. Fertilizer efficiency is higher by 5.3–12.8% when plowing at doses of N62Р66K82. Product Description popup.authors Vitalii P. Kravchenko Oleksandr V. Demydenko Svitlana A. Yarmilko Lidiia V. Yaremych Svitlana V. Chala Nadiia I. Kyrylchatenko popup.nrat_date 2025-12-23 Close