TY JOUR TI EFFICIENCY OF BIOLOGICAL PREPARATIONS IN CANNING OF ALFALFA KW alfalfa KW biological preparation KW exchange energy KW organic acids. JO Vestnik of Kazan State Agrarian University AU Bikchantaev, I.. AU Shakirov, S.K. AU Vafin, F.R. PY 2018 IS 13 PB Kazan state agrarian University