Taking into account after-effects of leguminous forecrop organic matter for obtaining wheat productivity of more than 4 Mg·ha⁻¹ (fertilizers compensation - more than 30 kg of tubers) with high quality (grain protei content - more than 13, tuber starch content - more than 12%) the optimum dose of mineral nitrogen by the mineral fertilization system is 90, by the organic-mineral system - 60 kg·ha⁻¹ of acting substance. Resource-saving technologies of crop-rotation include local application of fertilizers, application of growth regulators and bacterial preparations, which allow to reduce specific energy input connected with fertilizer application for spring wheat by 19, 15 and 22% correspondingly; for early-maturing potato strip application of N30P30K45 in comparison with N60P60K90 by 36%, quartazin on the background of N60 - by 23%. On the background of strip application of the basic fertilizer the action of bacterial preparations in spring wheat crops is equal to 30 kg·ha⁻¹ of mineral nitrogen.
Application of bacterial preparations on the basis of associative diazotrophs and phosphate mobilizing bacteria in winter wheat on sward-podzolic light loamy soils of the medium culture using mineral and organic-mineral system of fertilization at the background of P₄₅K₆₀ and 60 kg·ha⁻¹ of the active matter of nitrogen was equal to the application of 30 kg·ha⁻¹ of mineral nitrogen. Energy spending connected with the fertilizer application decreased from 6 to 19%. Using azobacterin under mineral system of fertilization at the band application background of the main fertilizer, the yield increase was 0.29 t·ha⁻¹, that of rizobacterin + phytostimophos at the broadcasting application background was 0.31, and that of band application - 0.29 t·ha⁻¹. Protein content in grain rose by 0.6%, glassiness by 2.5%, and gluten by 0.8%. Yielding capacity increase is associated with the increase of the grain number in ear, number of earlings and the mass of 1000 grains.
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