Humus and nitrogen state virgin and cultivated chernozems

Abstract

At the quantitative level on the basic parameters described in the fertility of the virgin chernozems in zonal-subzonal aspect. The article traces the changes in nitrogen and humus condition at an early stage of development. In terms of reserves of humus and nitrogen chernozems forest steppe and steppe have significant differences: the largest reserves of humus and nitrogen are concentrated in the migration-micellar (typical) chernozems, the lowest - in the texture-carbonate (southern). Scheduled prognosis agroevolution chernozems in the amplification of human impact.

Keywords

• агроэволюция черноземов
• состав гумуса
• формы азота
• 631.4
• agroevolution of chernozems
• composition of humus
• nitrogen forms