Changes in humus content and composition of hydromorphic soils in irrigated agriculture in conservation of land resourcesOtabek G. Karabekov, Khaitoli Kh. Karimov, Jamshid Abdinazarov, Kudrat D. Kurdashev, Salimjon M. Tashkulov and Azamat S. FozilovE3S Web Conf., 719 (2026) 02001DOI: https://doi.org/10.1051/e3sconf/202671902001