Abstract
The long-term dynamics of humus parameters and bioproductivity of soddy-podzolic soils in an agrocenosis under the conditions of well-pronounced microfeatures of topography and agrotechnical impact of different intensity has been studied. Unfavorable changes in qualitative and quantitative parameters of humus in soils of depressions and their role in the productivity of phytocenoses have been analyzed. The difference between the pronouncement rate of humus degradation and a drop in productivity of phytocenoses in depressions in comparison with elevated areas and its dependence on the kind of agrotechnical impact has been revealed.
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