PSB Liquid — this is a liquid bio-preparation in the form of a bacterial inoculant. The preparation contains various types of bacteria, such as Pantoea eucalypti TM-710Н1, Pseudomonas baectia TM 603A3, Pseudomonas fluorescens TM 521B7 and Pseudomonas xanthomarina TM 5268A. The preparation also contains humic acids in an amount up to 10 %. The bacterial concentration is no less than 5×106 CFU/ml. The preparation is used for pre-sowing treatment of cereal crops, such as winter wheat. The recommended dosage is 260 ml per 100 kg of seeds. The use of this preparation is aimed at improving plant growth and development due to the activity of the bacteria contained in it, which contribute to soil fertility enhancement and plant disease protection. The preparation is produced by Terramax Ukraine, located in Kyiv, Ukraine.