TY JOUR TI THE PERIODS OF EROSIVE PROCESSES STRENGTHENING AT THE DEVELOPMENT OF VIRGIN AND FALLOW LANDS ON THE SOUTH OF CENTRAL SIBERIA KW agriculture KW virgin soil KW deposit KW development KW erosion KW Republic of Khakassia JO Bulletin of KSAU AU Chebochakov, E.Y. AU Shaposhnikov, G.M. AU Idimeshev, N.V. AU Murtaev, V.N. PY 2018 IS PB Krasnoyarsk State Agrarian University