This study aims to determine the composition of solid planting media and POC concentrations that are suitable for supporting the growth of Tatsoi Mustard (Brassica narinosa L.). The research will be carried out in Purwo Asri Village, Lempuing Jaya District, Ogan Komering Ilir, South Sumatra. It was carried out from August to October 2022. The study used 2 factors, where the first factor was the…