The Rizol (Rizofort) preparation is a sterile liquid intended for use in agriculture. It contains the active ingredient Bradirhizobium japonicum at a concentration of 2×109 CFU/ml. This microorganism promotes improved growth and development of plants, particularly soybeans. The preparation is applied as a soil fertilizer, helping to enhance nutrient utilization efficiency and increase crop yield. A single application of 1.5–2.0 liters per ton of seeds ensures the necessary effect on plants. The preparation is easy to use and does not require complex preparation before application. It is environmentally safe and can be effectively used within modern agronomic practices.