Agroecological role of biohumus on sod-podzolic soil during irrigation of the rump-timothy grass mixtureFarrukh Musayev, Sergey Danilin, Olga Zakharova and Sergey RodikovE3S Web Conf., 210 (2020) 04003DOI: https://doi.org/10.1051/e3sconf/202021004003