Binary plantings as a factor of reducing the technogenic load of agrocenosis

Abstract The results of research conducted by Voronezh State Agrarian University to determine the effect binary sunflower plantings in combination with postharvest sideration on content plant residues soil, number soil microorganisms, dynamics detritus, infestation and yield are presented. positive effects studied complex biological function was well established increase organic matter sources (by 4.64 5.67 t/ha), contributing detritus (4.7 9.9%) growth which reduction planting 9-18 pcs/m 2 ) has led significantly higher yields (0.18-0.51 t/ha) compared traditional technology cultivation. As components sunflower, it is recommended use perennial legumes yellow melilot purple alfalfa, oil radish as a sideral crop.