Аннотации:
The paper referres to the study of chernozem water-stable aggregates under different agroecosystem management practices: crop rotations, fertilization systems, permanent crops: fallow and black fallow. The researches has shown that crop rotations with a high percentage in row crops (60%, 70%) recorded a lower content of hydrostable aggregates. Also it was ascertained that the crop rotation which includes: perennial crops (alfalfa - 3 years), supplement with organic fertilizers (70 t/crop-rotation) and has less row crops (40%/crop rotation), registered more hydrostable aggregates.