TY JOUR TI Factors that ensured the formation of potato yields when cultivated on ridges KW crop KW enzymatic activity KW nutrients KW potatoes KW ridges. JO Agrarian Bulletin of the AU Rabinovich, G.Y. AU Tihomirova, D.V. AU Lapushkina, V.N. PY 2020 IS 198 PB Ural State Agrarian University