Method of obtaining pure organo-mineral fertilizer and its ecological investigation of the influence on soil fertilityIlkhom Begmatov, Rejepnur Nurov, Kadyr Amanov, Dayanch Reyimov and Serdar AtayevE3S Web of Conf., 381 (2023) 01016DOI: https://doi.org/10.1051/e3sconf/202338101016