TY JOUR TI THE INFLUENCE OF LEGUMINOUS PLANTS AS PRECEDENTS ON PRODUCTIVITY AND QUALITY OF POTATOES KW crop rotation KW occupied steam KW potatoes KW narrow-leaved lupine KW soybeans KW fodder beans KW vetch-barley mixture. JO Vestnik of Kazan State Agrarian University AU Yakovleva, M.I. AU Dimitriev, V.L. AU Mefod'ev, G.A. PY 2020 IS 15 PB Kazan state agrarian University