Efficiency of risotorphin in soybean crops in conditions of CHZ

In the conditions of the Central Black Earth Zone, studies were carried out to study the effectiveness of strains of rhizotorfin in soybean crops. Field experiments were carried out at the Voronezh Federal Agrarian Research Center. The results obtained made it possible to establish the positive role of symbiotic strains in increasing the grain productivity of soybeans. Yield growth varied from 2,38 to 2,55 t / ha. The influence of microbial strains on the change in productivity was determined by the improvement in the indicators of effective soil fertility. There is an increase in the content of mineral nutrients under the influence of strains of microorganisms in the first half of the growing season.