Growth and development of Alfalfa depending on the type of nitrogen nutritionMarina Yu. Kozyreva, Larisa Zh. Basieva, Al-Azawi Nagham Majeed Hameed, Alda Kh. Chibirova and Khetag M. KhetagurovBIO Web Conf., 23 (2020) 03007DOI: https://doi.org/10.1051/bioconf/20202303007