TY JOUR TI THE INFLUENCE OF THE KRASNOYARSK TERRITORYNATURAL CONDITIONS ON THE GRAIN PRODUCTION KW heat supply KW moisture supply KW chernozem share in the structure of arable land KW yield KW correlation and regression analysis JO Bulletin of KSAU AU Arzumanyan, M.S. PY 2014 IS PB Krasnoyarsk State Agrarian University