TY CONF TI HISTORICAL ASPECTS OF THE DEVELOPMENT OF VIRGIN AND FALLOW LANDS IN CENTRAL SIBERIA KW Central Siberia KW agriculture KW virgin land KW arable land KW history of agriculture KW grain KW cereals KW oats KW wheat KW rye JO «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE» AU Stepanenko, N.I. PY 2024 PB Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS