Abstract
Experimental studies were carried out in the conditions of the Partnership with limited responsibility "Olzha - Agro" of the Fedorovsky district of Kostanay region. The research climate is sharply continental, with an annual rainfall of 330... 340 mm. The soil cover is represented by ordinary chernozems. Field germination of soybean plants ranged from 76.5% to 85.8%, with 80.0% control. Plant safety ranged from 65.6-80.8%, with control - 70.2%. The height of the plants ranged from 75.4-80.5 cm, with a control of 79.3 cm. The height of attachment of the bean ranged from 16.0-17.1 cm, with a control of 16.9. Elements of the crop structure: the number of beans per plant ranged from 17.6-19.6 pieces, with 18.0 pieces under control; the number of seeds per plant ranged from 26.8-33.3 pieces, under control - 29.2; the number of seeds in the bean ranged from 1.52-1.71 pieces, under control - 1.62; The weight of 1000 seeds ranged from 129.2-138.1 g, under control of 137 g. The largest harvest was harvested with a sowing rate of 600 thousand pieces per 1 hectare - 12.2 centners per 1 hectare. With a norm of 500 thousand pieces per 1 hectare, the yield was almost the same - 11.8 centners per 1 hectare. With an increase in the norm to 800 thousand pieces per 1 hectare, it decreased by 2.6 centners per 1 hectare. Under control and the lowest sowing rate (400 thousand pieces per 1 hectare), the yield was lower by 1.0 centners per 1 hectare.