A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2018; you can also visit the original URL.
The file type is
The research of organic matter content in major subtypes of black soils of the Central Ciscaucasia, namely: ordinary carbonated, ordinary regular (not boiling from the surface), leached and alkalized-firm (similar to vertisols) on virgin and on arable soils, has been performed. It has been found that within 70-100 years of soils exploitation in the system of agrobiocenoses, the content of humus in the upper horizons of soils has reduced by 16-38 % for carbonated, 25 to 33 % for regular, 6-21 %doi:10.13005/bbra/2026 fatcat:sqf5725sf5bx5fqadcbr7bxdpu