Agrarian and economic aspect of food supply and its safety at the regional level N.V. Rodnina, M.E. Tarasov, M. M. Teryutina and A. N. Kundyaitseva BIO Web Conf., 17 (2020) 00175 Published online: 28 February 2020 DOI: 10.1051/bioconf/20201700175