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Information × Registration Number 0220U104665, 0120U100238 , R & D reports Title Field crops response to soil tillage systems and fertilizers in steppe crop rotation under climate change popup.stage_title Head Chaban Volodymyr I., Registration Date 24-12-2020 Organization State Institution Institute of Grain crops of NAAS of Ukraine popup.description2  The object of research-processes of formation of field crop yields depending on tillage and fertilizer systems. The purpose of the study is to determine the response of field crops to tillage and fertilization systems in crop rotations of the Steppe in the conditions of climate change. Research methods-field, laboratory-analytical, statistical. The crop rotation fertilizer system is a statistically significant factor influencing the effectiveness of soil fertility: the share of influence on the nitrogen regime is 92.1%, phosphate-99.6%, potassium-99.5%. The degree of influence of tillage systems-7.4; 0.09; 0.06%, respectively. The share of factors influencing the yield of field crops in crop rotation was revealed: for winter wheat the contribution of fertilizer factor - 75-83%, tillage - 25-16%; for barley and sunflower - 63-66% and 36-31%, respectively. Variation of corn yield from the systems of basics cultivation and fertilizer were almost equivalent to 53 and 42%. Yields of legumes (peas, soybeans) do not significantly depend on tillage systems, and the share of fertilizer reaches 98 and 96%. Crop rotation productivity under control: tillage - 3.02 t / ha, combined - 3.43 t / ha of grain units. The increase in yield by organic fertilizer system and plant residues was 7-15 and 4%, by mineral and organo-mineral system -31-34 and 20-23%. Economic analysis shows that the additional harvest under optimal feeding backgrounds (manure 5 t / ha + N21P21K21; N43P41K41; N43R41K41 + residues) allows making a profit in the range of 12190-14130 UAH / ha with a profitability of 92-107% and environmentally friendly products. Product Description popup.authors Kliavzo Serhii P Podobed Oksana Yu popup.nrat_date 2020-12-24 Close