In this article, data about the new native variety of Nafis and variety of Selekta-302 is described which was brought from Krasnodar region of the Russian Federation in the conditions of irrigated meadow-gray soils of Samarkand region, seed germination in field conditions, storage, growth, development, productivity, yield composition, the optimal planting schemes, norms have been identified and recommended for implementation. In the second experiment, in the conditions of irrigated meadow-gray soils, local Nafis variety and Selekta-302 variety of Krasnodar regions included in the State Register, imported strains of Bradyrhizobium japonica endogenous bacteria produced in our republic and aboriginal populations bacterium present in local soil. The results of the study on the effect of inoculants studied and their effect on plant development, the number and weight dynamics of stems formed in plant roots, crop structure, yield, weight of 1000 seeds, as well as their effectiveness are described.