АГРОТЕХНОЛОГИЧЕСКИЕ АСПЕКТЫ ФОРМИРОВАНИЯ УРОЖАЙНОСТИ СОРТОВ ЯРОВОЙ МЯГКОЙ ПШЕНИЦЫ В ЦЕНТРАЛЬНОМ НЕЧЕРНОЗЕМЬЕ

Abstract

The comparative analysis of influence external factors on formation of productivity of varieties summer soft spring wheat selections FIC «Nemchinovka» is resulted. Essential influence is rendered with hydrothermal conditions both as a whole of the vegetative period, and in critical growth phases and developments of plants, is especial in the beginning of formation of reproductive bodies. Lack of a moisture at a high temperature mode results in a shortage of a grain yield. Solar radiation defines photosynthetic activity of plants of a spring wheat and in damp years at high-intensity technology 7-8 million in m 2 on hectare day can reach, efficiency of photosynthesis thus makes 1.6-1.7 kg of a grain/ hectares from 1 thousand in m 2 assimilation surfaces. The basic contribution to increase of productivity brings agrotechnology. She assumes, designed for planned productivity, system of fertilizer and system of chemical protection of plants, at observance of culture of other agrotechnical receptions of cultivation. Productivity of varieties of spring wheat with growth of intensity grows, and at high-intensity technology with biological efficiency of used pesticides of 99% reaches 9-10 т/hectares a grain. Thus the maintenance of protein in a grain makes 15.5-16.0%.