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Influence of moisture conditions on the duration of the growing season and yield of soybean in a central nechernozёmya. Based on years of research analyzed the influence of the dynamics of rainfall during the summer period for the duration of the growing season and yield of soybean varieties mageva in the Kaluga region. Not established a close connection length of growing season with soy rainfall during the growing season, a decisive influence on it has a temperature control. Traced fairly close direct link between soybean yield and the amount of precipitation in July. In years with inadequate moisture bond yields can also be traced to the amount of rainfall June. On sandy sod-podzolic soil formed the highest soybean yields in years with high rainfall.
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