TY JOUR TI TWO-COMPONENT HERBICIDE HORS D, KS FOR THE PROTECTION OF CORN CROPS KW herbicide KW weed vegetation KW efficiency KW corn KW productivity JO Vestnik of Kazan State Agrarian University AU Savva, A.P. AU Telezhenko, T.N. AU Kovalev, S.S. AU Suvorova, V.A. PY 2022 IS 16 PB Kazan state agrarian University