[The effect of bacterium inoculation on the yield of pure and mixed corn with soya on leached chernozems].

The use of biopreparations resulted in the increase of green mass within 64-126 c/ha when field experiments were carried out with joint and mixed crops of corn with soya in conditions of the Polyssya leached chernozems. An advantage of 8-23 c/ha was achieved when growing their mixtures. The average crop of green mass for the years of investigations was within 530-894 c/ha. Bacterial fertilizers and soya activate microbiological process of nitrogen cycle, increasing the number of nitrifiers and denitrifiers in the rhizosphere of plants. Thus these factors improve the nitrogen nutrition of cultures in the mixed crops. There is an interaction between plants of corn-soya phytocenosis which has the metabolic-competition character that guarantees better employment of biopreparations and fertilizers, genetic properties of plants and natural resources.