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Aysanov Timur Soltanovich
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• Stavropol State Agrarian University
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—Articles count: 1
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06.00.00 Agricultural sciences
DescriptionThe article presents three-year data on the influence of different fertilization systems and predecessors (corn for silage and peas) of winter wheat in the rotation on the dynamics of content in the 0-20 cm layer of black leached soil of mineral nitrogen, of available phosphorus, of potassium, and yield of winter wheat. The materials presented in this article indicate that, regardless of its predecessor in all phases of plant development, the under study fertilizer systems significantly increased the content of mineral nitrogen on the indicators of natural agrochemical background on 1,1-29,3 mg/kg; maximum contents was registered in the settlement system of fertilizer. After a seeded fallow predecessor the fertilizer systems significantly increased the content of available phosphorus in the soil at 1,5-16,6 mg/kg and exchangeable potassium in the 6-57 mg/kg. The maximum indices of both indicators were observed in the settlement system of fertilizer. Analyzed fertilizer systems contributed to a significant increase in wheat yield relatively to control 0,82-2,24 t/ha on a busy couple 0,74-1,6 t/ha for maize silage, 1,44-2,42 t/ha peas. Maximum productivity of winter wheat in the experiment was fixed at the fertilizer system after a busy couple, and was 6,19 t/ha