TY JOUR TI The use of promising biological products for the potato plant in the North Caucasus KW Kartofin KW BisolbiSan KW Rizoplan KW Zerebra Agro KW biological products KW potatoes KW biometric indicators KW yield JO Agrarian Bulletin of the AU Gerieva, F.T. AU Gazdanova, I.O. PY 2021 IS 206 PB Ural State Agrarian University