Shvayka O. The Ecological Peculiarities of the Functioning of the Winter Wheat Agrocenosis Under the Conditions of Polissya

The thesis deals with the investigation into the ecological peculiarities of the functioning of winter wheat agrocenosis (Podolyanka variety) under the conditions of Polissya. The paper highlights the ecological state of its basic subsystems (soil, microbe cenosis, phitocenosis). It analyzes their behavior in the gradient increase of the factor load levels of natural (terms of sowing) and anthropogenic (fertilization levels) origin. The research establishes that under conditions of Polissya with the application of N60P60K60 for winter wheat, agrarian ecosystem functions in a stable mode, and with the application of N120P120K120 in a productive. It has been shown that the application of increased norms of mineral fertilizers intensifies the internal structure disbalance of agroecosystem. The dissertation reveals mat in the first place it effects ecological state of the soil subsystem as the weakest agrocenosis chain.