Optimum Liquid for PLV – this is a liquid bio-preparation in the form of a bacterial inoculant. The preparation contains Rhizodium legumiosarum USDA 6100 and Azospirillum brasilence TM-V100100, which help improve plant growth and increase crop yields. The preparation is intended for pre-sowing treatment of pea and soybean seeds. The product is manufactured by Terramax Ukraine, located in the Dnipro region, Krivhorodsky district. The preparation is used in agriculture to enhance plant productivity through the biological action of the microorganisms it contains. Application of Optimum Liquid for PLV is recommended at a rate of 2.5 liters per ton of seeds for industrial use and 2.5 milliliters per kilogram for retail sales. The preparation is environmentally safe and contains no chemical substances.