Abstract
The increased interest in biological products is due to the unique mechanism of action of microorganisms-antagonists included in their composition, which provides ample opportunities for the agronomist to create and regulate controlled biocenosis in the greenhouse. Therefore, the authors aimed to identify the role of antagonist microbes introduced into the substrate from biological products in the formation and regulation of controlled biocenosis in the coconut substrate. The experience laid the CX JSC "Grower", Togliatti in the winter-spring crop rotation scheme that includes 4 options of spraying vegetative plants of cucumber by a combination of zircon with biofertilizersEcofys, Ferovit, Siliphant and adding biologics Binal, W and Vitaris Extra, Well in drip irrigation. As a result of research it is established that the biocenosis of the substrate does not remain unchanged in the process of growth and development of cucumber plants. It develops and evolves, consistently changing from the beginning of the cultural turnover to its completion. Anthropogenic impact on plants in the greenhouse led to a change in the entire structural complex and an increase in the total number of species of microorganisms, which in turn had a positive impact on the survival and activity of antagonists present in the substrate. The complex spatial structure of microorganisms formed at the end of the crop rotation due to the consistent introduction of physiologically valuable microorganisms (Bacillus subtilis, Pseudomonas fluorescens, Tricho-dermaviride) allowed to form a substrate with high biological activity, contributed to the increase in species diversity, and at the same time the formation and regulation of a sustainable biocenosis. Thus, one of the ways to form and control the composition of the substrate biocenosis is the introduction of biopreparations into drip irrigation to combat phytopathogenic microorganisms and as preventive measures aimed at preventing the emergence of a stable population of phytopathogenic microorganisms.