%0 Journal Article %T Dependence of spring wheat on hydrothermal conditions of growing season of Kama area of middle Volga %A Petrov, S.. %A Mayorov, I.. %A Serzhanov, I.. %A Shaykhutdinov, F.. %A Galiev, F.. %K spring wheat, moisture supply, heat supply, correlation, productivity. %J Vestnik of Kazan State Agrarian University %D 2014 %N 8 %P 4 %I Kazan state agrarian University