Abstract
Background: Kapuas Hulu is a district in West Kalimantan Province, Indonesia, which is famous for its production of kratom (Mitragyna speciosa), a traditional medicinal plant. Kratom is the main cultivated plant carried out by farmers. However, data regarding the physicochemical properties of kratom plantation soil are still limited, especially regarding the heavy metal content. This research aimed to determine the physicochemical properties and heavy metal content of soil planted with kratom. Methods: This research was conducted on alluvial soil and peat planted with kratom. This research is survey of 2 fields where sampling from each land was carried out using the diagonal method, where 5 sub-samples were taken per land and composited, except for volume Weight. Result: Mineral land and peat land can be used as land for Kratom cultivation because the physicochemical properties of both lands support the growth of Kratom plus the heavy metal content is below the critical threshold.
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