TY JOUR TI INFLUENCE OF ELEMENTS OF TECHNOLOGY ON CROP PRODUCTIVITY AND NDVI OF WHEAT WHEAT SOWINGS KW winter wheat KW variety KW predecessor KW level of mineral nutrition KW timing of sowing KW seeding rates KW vegetative index KW NDVI JO Agrarian Bulletin of the AU , .. AU SHESTAKOVA, E.O. AU , .. PY 2018 IS 173 PB Ural State Agrarian University