TY JOUR TI Economic and energy efficiency of potato cultivation in different feeding areas and the use of fungicides in the Middle Urals KW potato KW feeding area KW variety KW yield KW economics KW energy KW fungicide JO Agrarian Bulletin of the AU Karpuhin, M.Y. AU Keyta, F.. PY 2021 IS 0 PB Ural State Agrarian University