The phytosanitary condition of the winter rye agrocoenosis depending on fallow predecessors

As a result of the influence research of clean, green manured and occupied fallows and fallow land on micro-mycete composition of arable layer and soil biological properties, and the infestation by disease and contamination of winter rye crops in the eastern part of the Volga-Vyatka zone it is revealed that the replacement of clean and occupied fallows by green manured fallow and the cultivation of winter rye on it, allow to get the significant increase in grain yield.