Efficient control of the productivity of agrophytocenosis of soybean (Glicyne max (L.) Merill)

Department of Agronomy and Agroecology, Kaliningrad State Technical University, Kaliningrad, Sovetskii, 1, Russia

^* Corresponding author: tatyana.troyan@klgtu.ru

Abstract

Around the world, there is a surging demand for soy, the ‘king of beans’. Soy is a globally traded foodstuff produced in both temperate and tropical regions and is a major source of protein and vegetable oils. In the conditions of the Kaliningrad region, the duration of soybean vegetation in soddy-weakly podzolic gleyic light loamy soil, with the medium reaction close to neutral, high and very high content of mobile phosphorus, and exchangeable potassium attains 144 days. The agrophytocenosis productivity is controlled through application of different mineral and bacterial fertilizers. Analysis of variance of the experimental data obtained in the study showed a pronounced relationship of 0.71 for the effect of the fertilizer system on quantitative indicators of the biological yield of soybean seeds. The effectiveness of the microbial-plant system of soybean cultivar Merlin and strains of nodule bacteria Bradyrhizobium japonicum, under optimal conditions, increased the crop yield to 4.43 t/ha, which is 2.11 t/ha higher compared to the control and 1.01 t/ha higher relative to the experimental option with carbamide fertilizer.