TY CONF TI INFLUENCE OF THE DIRECTION OF USE OF FALLOW LANDS ON SOIL FERTILITY IN THE SIBERIAN REGION KW soil KW fertility KW forest-steppe KW fallow land KW forest overgrowth KW development KW use JO «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE» AU Sorokina, O.A. AU Popkov, A.P. PY 2024 PB Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS