%0 Journal Article %T PRODUCTIVITY AND QUALITY OF SPRINT VARIETY POTATO TUBERS, DEPENDING ON PLANTING TIME %A Vladimirov, K.V. %A Gareev , I.. %A Vladimirov, V.P. %A Egorov, L.M. %K variety, a dose of fertilizer, planting time, leaf area, productivity, starch content, vitamin C content, nitrate content, marketability. %J Vestnik of Kazan State Agrarian University %D 2015 %N 10 %P 4 %I Kazan state agrarian University