TY JOUR TI 250 YEARS OF POTATO GROWING IN TYUMEN REGION KW Tyumen Region KW potatoes KW food potatoes KW seed potatoes KW variety KW productivity KW processing JO Bulletin of KSAU AU Loginov, Y.P. AU Kazak, A.A. AU Yakubyshina, L.I. PY 2018 IS PB Krasnoyarsk State Agrarian University