%0 Journal Article %T SPRING BARLEY - MAIN FEED CROP OF THE REPUBLIC OF MARI EL %A Zolotoreva, R.. %A Vinogradov , G.. %A Maksimov, V.. %A Ivanova, L.. %K spring barley, varieties, fertilizers, grain productivity, crude protein, harvesting of fodder units. %J Vestnik of Kazan State Agrarian University %D 2016 %N 11 %P 4 %I Kazan state agrarian University