The effectiveness of biological products in the steppe conditions of the Central Chernozem region

Abstract

Abstract In the steppe conditions of the Central Chernozem region, the effectiveness of biologics based on associative microorganisms in the crops of spring barley and winter triticale was studied. The effectiveness of biological products was evaluated on two fertilization backgrounds: the natural background of mineral nutrition (without fertilizers) and pre-sowing nitrogen application at a dose of 30 kg / ha of the active substance. The studies carried out in the steppe conditions of the Central Forest District, with insufficient moisture supply, allowed us to establish a high responsiveness of cultivated plants to pre-sowing seed treatment with drug strains. In barley crops, mineral nitrogen contributed to an increase in productivity by 0.26 t/ha. Seed inoculation contributed to an increase in grain harvest by 0.31-.52 t/ha. The greatest increase in single application was provided by strains 7, 2P-7 and 204. Higher yield growth was observed in the binary application of strains 7, 30, 204 in combination with strain 8. The productivity of triticale in the conditions of the Central Processing Plant was higher than that of barley. Mineral nitrogen increased the yield of triticale by 0.33 t/ha. On a natural background, microbial strains increased grain harvest by 0.55 t/ha. The maximum effect was observed when inoculated with strain 18-5. The combined use of microbial strains with nitrogen fertilizer did not contribute to a further increase in the productivity of triticale.