%0 Journal Article %T WAYS TO INCREASE THE PHOTOSYNTHETIC ACTIVITY OF EARLY MATURING POTATO OF ZHUKOVSKIY RANNIY VARIETY IN THE MIDDLE VOLGA FOREST-STEPPE %A Vladimirov, K.V. %A Mostyakova, A.A. %A Vladimirov, V.P. %A Egorov, L.M. %K leaf area, photosynthetic potential (PP), potatoes, yield, starch, vitamin C, nitrates. %J Vestnik of Kazan State Agrarian University %D 2015 %N 10 %P 4 %I Kazan state agrarian University