TY JOUR TI PECULIARITIES OF WATER REGIME AND EVALUATION OF HEAT RESISTANCE OF USSURI PEAR UNDER BIOFERTILIZER USE KW drought resistance KW heat resistance KW water regime KW Ussuri pear KW biofertilizers JO Bulletin of KSAU AU Fedorova, D.G. AU Galaktionova, L.V. PY 2024 IS 0 PB Krasnoyarsk State Agrarian University