Methods for Retaining Soil Fertility and Increasing Productivity of Agrocenoses in the Agriculture of the Nonchernozemic Zone
The growing of perennial legumes, the use of mixed cultivation techniques, the substitution of black fallow by green-manured fallow, and the application of organic fertilizers to clover crop rotations at a rate of no more than 8 t/ha are suitable for the retention of fertility of soddy-podzolic soils.