%0 Journal Article %T AGROBIOLOGICAL FEATURES OF SUNFLOWER HYBRIDS CULTIVATION UNDER THE CONDITIONS OF THE NON-CHERNOZEM ZONE %A Vinogradov, D.V. %A Makarova, M.P. %K sunflower, hybrid, yield, oil content, adaptability, agrobiological %J Bulletin Samara State Agricultural Academy %D 2019 %N 4 %P 4 %I Samara State Agrarian University