TY JOUR TI Influence of various factors on crop formation and potato quality KW potatoes KW drainage KW fertilizers KW weather conditions KW water-air and nutrient regimes KW yield KW product quality KW return on fertilizers JO Agrarian Bulletin of the AU Petrova, L.I. AU Mitrofanov, Y.I. AU Gulyaev, M.V. AU Pervushina, N.K. PY 2021 IS 207 PB Ural State Agrarian University