TY CONF TI CHANGES IN THE FERTILITY OF LEACHED CHERNOZEM UNDER PROLONGED CROP ROTATION, TILLAGE AND FERTILIZER USE KW leached chernozem KW preceding crop KW tillage KW mineral fertilizers KW soil fertility JO «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE» AU Usenko, V.I. AU Garkusha, A.A. AU Litvinceva, T.A. AU Deryanova, E.G. AU Kobzeva, I.A. AU Scherbakova, A.A. PY 2024 PB Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS