TY JOUR TI ENERGY SAVING TECHNIQUES IN SPRING WHEAT CULTIVATION BY TWO PRECEDERS ON LEACHED CHERNOZEM KW tillage KW plowing KW direct sowing KW productivity KW profitability KW precipitation KW air temperature JO Bulletin of KSAU AU Mihaylova, Z.I. AU Ivchenko, V.K. AU Polosina, V.A. PY 2022 IS 0 PB Krasnoyarsk State Agrarian University