TY CONF TI THE BASIC PRINCIPLES OF SOIL FERTILITY MANAGEMENT IN THE CULTIVATION OF GRAIN CROPS USING INTENSIVE TECHNOLOGIES IN SIBERIA KW soil fertility KW intensive technology KW weather conditions of the growing season JO «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE» AU Sharkov, I.N. PY 2024 PB Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS