%0 Journal Article %T THE PRODUCTIVITY AND QUALITY OF SEED TUBERS OF EARLY RIPE POTATOES VARIETY SEVERNY AT DIFFERENT TERMS AND WAYS OF PLANTING IN THE NORTHERN FOREST-STEPPE ZONE OF TYUMEN REGION %A Loginov, Y.P. %A Kazak, A.A. %A Yakubyshina, L.I. %K potatoes, variety, seed tubers, term, the way of planting, productivity, quality %J Bulletin of KSAU %D 2019 %N %P 7 %I Krasnoyarsk State Agrarian University