A method of predicting wheat yield

摘要

method u043fu0440u043eu0433u043du043eu0437u0438u0440u043eu0432u0430u043du0438u00a0 yields of winter wheat, including the definition of dose from fertilizers, u043eu0442u043bu0438u0447u0430u044eu0449u0438u0439u0441u00a0, u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442 doses of nitrogen fertilizers and cole u0438u0447u0435u0441u0442u0432u043e rainfall for may, and forecast of yield of winter wheat u043eu043fu0440u0435u0434u0435u043bu00a0u044eu0442 formula:;i = 2.39 + 0112N + 0,07u043eu043c - 00008N2 - 00005u043eu043c2, r = 0.82, where is the yield of winter wheat, t / ha; n - dose of nitrogen fertilizer from 31% to 93 kg / ha of existing substances; om rainfall for may from 18 to 104 mm; r is the multiple u043au043eu0440u0440u0435u043bu00a0u0446u0438u0438.