TY JOUR TI OPTIMIZATION OF NUTRITION OF WINTER CROPS IN CONDUCTING TOP-DRESSING WITH MINERAL FERTILIZERS KW winter rye KW top dressing KW nitrogen fertilizers KW aquariums KW tissue diagnostics KW biometric diagnostics KW chemical composition KW crop structure JO Bulletin of KSAU AU Sorokina, O.A. AU Turchanov, M.E. PY 2017 IS PB Krasnoyarsk State Agrarian University