TY CONF TI THE DEVELOPMENT OF VIRGIN LANDS OF BAIKAL SIBERIA AND THE SCIENTIFIC RESEARCH FOR SUSTAINABLE LAND USE OF TERRITORIES: HISTORICAL ASPECTS KW development of virgin lands KW soil ecology KW soil cover KW Irkutsk region KW history of scientific research JO «PROBLEMS OF SOIL FERTILITY IN MODERN AGRICULTURE» AU Martynova, N.A. AU Zhuchenko, N.A. PY 2024 PB Krasnoyarsk Scientific Research Institute of Agriculture is a separate division of the Federal Research Center KSC SB RAS