Dependences of the yield of common beans on agrotechnical factors in the zone of chestnut soils of the Astrakhan regionA.I. Belyaev, Yu.N. Petrov, V.N. Pavlenko, A.V. Pavlenko and M.P. AksenovBIO Web Conf., 71 (2023) 01005DOI: https://doi.org/10.1051/bioconf/20237101005