%0 Journal Article %T A CONTRIBUTION OF PROFESSOR A.A. ZIGANSHIN TO THE DEVELOPMENT OF WINTER RYE CULTIVATION TECHNOLOGY %A Ismagilov, R.R. %A Nurlygayanov, R.B. %K winter rye, cultivation technology, predecessor, fertilizer, crop programming. %J Vestnik of Kazan State Agrarian University %D 2018 %N 12 %P 3 %I Kazan state agrarian University