THE CHANGES IN SOIL NUTRIENT REGIME AGROPHYTOCENOSES WINTER WHEAT DEPENDING ON ITS BASIC TILLAGE SYSTEMS IN ROTATION

The results of research, conducted in the stationary field experiment to study the influence of four system of basic soil tillage: differentiated, subsurface plowing, periodical moldboard and superficial on the content of mineral nutrients in the soil in the winter wheat agrophytocenoses. Found that the highest content of nitrogen, phosphorus and potassium in typical black soil formed by periodical moldboard soil tillage.