%0 Journal Article %T Modeling of productional process and assessment of a biological crop of winter wheat in the conditions of Central Volga area %A Glukhovtsev, V.. %A Samokhvalova, E.. %K bio-climatic potential, biological productivity, production process modeling, biological functions. %J Vestnik of Kazan State Agrarian University %D 2014 %N 9 %P 7 %I Kazan state agrarian University