ProFiX liquid — this is a bio-preparation containing various strains of bacteria Bradyrhizobium diazoefficiens and Bradyrhizobium japonicum. The preparation is intended for use in agriculture, specifically to increase soybean yields. It is applied as a seed treatment, promoting better plant growth and development. The manufacturer of the preparation is Legum Technology Ltd from the United Kingdom. The preparation can be used both for industrial production and for retail sale to the public. The bacteria included in the preparation contribute to atmospheric nitrogen fixation, providing plants with necessary nutrition without the use of chemical fertilizers. This makes the preparation environmentally safe and an effective means for improving the quality and quantity of harvest.