The BIOMAG-SOYA preparation is a biological preparation intended for use in agriculture. It is used for pre-sowing treatment of soybean seeds and contains the active ingredient Bradyrhizobium japonicum IBM B-7205, with a minimum number of viable cells of 2.0x108 per 1 ml of preparation. The preparation helps increase crop yield by protecting against diseases and stimulating plant growth. The preparation is produced by the trading house "Enzym-Agro", located in the city of Vinnytsia, Ukraine. The preparation is used for treating soybean seeds at a dosage of 2.0 liters per ton of seeds. This ensures effective inoculation of plants with beneficial bacteria that contribute to improved nitrogen nutrition of plants. BIOMAG-SOYA is an environmentally friendly product and may be used within organic farming. Its application contributes to improving soil fertility, enhancing crop quality, and reducing dependence on chemical fertilizers.