%0 Journal Article %T POTATO PRODUCTIVITY DEPENDING ON THE METHOD OF APPLICATION OF GROWTH REGULATOR AND CALCULATED BACKGROUND OF MINERAL NUTRITION ON THE GRAY FOREST STEPPE SOIL OF MIDDLE VOLGA REGION %A Vladimirov, V.P. %A Mostyakova, A.A. %A Egorov, L.M. %A Agiev, F.F. %K potato, Vineta variety, leaf area, leaf mass, crop structure, tuber yield. %J Vestnik of Kazan State Agrarian University %D 2020 %N 14 %P 5 %I Kazan state agrarian University