Productivity of binary vetch-and-grass mixtures in the conditions of a plain agricultural landscape of the western CiscaucasiaAlexandra Skamarokhova, Roman Kravchenko, Denis Yurin, Andrey Svistunov and Anna GneushE3S Web of Conf., 463 (2023) 02026DOI: https://doi.org/10.1051/e3sconf/202346302026