Indian Journal of Science and Technology

Abstract

The article aims at finding ways to control the symbiotic fixation and study methods for activating legumes-rhizobia symbiosis. The article provides the results of studies on the effect of bacterial fertilizers, micronutrients, growth regulators and planting date on the activity of the biological fixation of soybeans. The article shows the effect of pre-planting treatment and different planting dates for the duration of symbiosis, symbiotic organs sizes, and the amount of fixed air nitrogen. It is found that inoculation of soybean seeds with active rhizobia strains, especially together with micronutrients and growth regulators, significantly increases the proportion of fixed nitrogen in its total consumption to 40–49% for the UAI 6 variety and up to 34–38% for the Mageva variety. The obtained data give reason to believe that the use of active rhizobia strains, bacterial fertilizers, micronutrients and growth regulators in soybean cultivation can be an essential tool for agriculture biologization.
Keywords: Biological Fixation Activity, Share of Fixed Nitrogen in the Total Consumption, Soybeans, The Amount of Fixed Nitrogen