Dry bacterial inoculant N-Charge is a biological preparation containing cells of bulbous bacteria Bradyrhizobium japonicum with a bacterial titre of 2.4 x 108 CFU/g. The preparation is used for inoculating soybean seeds and is intended to increase yield by fixing atmospheric nitrogen. The bacteria form a symbiosis with plant roots, providing them with an additional source of nitrogen. The preparation is available in dry form and is used for seed treatment prior to sowing.