TY CONF TI CHERNOZEMS OF THE SOUTH BAIKAL REGION, THEIR AGRO- AND POSTAGROGENIC TRANSFORMATION KW content and reserves of humus KW thickness of the humus horizon KW plowing and soil regeneration KW chernozems KW extremely continental climate JO «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE» AU Kozlova, A.A. AU Lyudvig, U.I. AU Makkoveeva, V.S. PY 2024 PB Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS