ECONOMIC ASSESSMENT OF SOYBEAN GROWING TECHNOLOGY DEPENDING ON BACTERIAL-MINERAL NUTRITION

The article presents the results of studies of the economic efficiency of the technology for growing soybeans of the Slavna variety depending on the use of bacterial preparations for pre-sowing seed treatment and foliar feeding of plants. The research was conducted during 2024-2026 in the conditions of the Right-Bank Forest-Steppe. The main attention was focused on determining the impact of various combinations of bacterial-mineral nutrition on the cost of gross output, production costs, seed cost, conditional net profit and the level of profitability of production. It was established that the use of the studied technological methods contributed to the improvement of economic indicators of soybean cultivation compared to the control option. The highest seed yield – 3.47 t/ha – was obtained with pre-sowing seed treatment with a complex of preparations Rizoline 3.0 l/t + Rizosave 1.0 l/t + Helprost 2.0 l/t in combination with two-time foliar feeding in the budding and bean formation phases. Under this option, the cost of gross output was 69.4 thousand UAH/ha, and production costs were 30.5 thousand UAH/ha. The cost price of 1 ton of seeds decreased to 8.79 thousand UAH, while the conditional net profit reached 38.9 thousand UAH/ha, and the profitability level was 127.5%. Comparative analysis showed that the combination of pre-sowing seed treatment with foliar feeding provided higher economic results than the use of individual technological measures. At the same time, three-time feeding did not ensure exceeding the maximum level of profit obtained with two-time application of preparations. This indicates the importance of optimizing the timing of the use of nutrients, taking into account their productive effect and the cost of additional technological operations. The practical significance of the results lies in substantiating an economically feasible combination of bacterial preparations and foliar feeding for growing soybeans in the conditions of the Right-Bank Forest-Steppe.