%0 Journal Article %T Efficiency of use of increasing doses of mineral and organic fertilizers on potato in the middle Volga steppe %A Vladimirov, S.. %K potatoes, variety, mineral and organic fertilizers, minerals, productivity, removal of the battery, the coefficients of nutrients. %J Vestnik of Kazan State Agrarian University %D 2013 %N 8 %P 3 %I Kazan state agrarian University