The objective of this study was to investigate the bioavailability of iodine (I) after applying different soil amendments. The effectiveness of organic and inorganic I sources on I concentration of mint was compared. Soil was amended with sawdust, rice husk, charcoal, wood ash and gypsum at the rate 10 t ha-1. Results showed that the use of soil amendment significantly enhanced mint biomass. The biomass yield among amendments was in the order of charcoal > wood ash > sawdust > rice husk > gypsum > no-amendment. Amendments also significantly increased I concentration in plants. Iodine concentrations in mint shoot were higher in wood ash and charcoal than other treatments. Iodine contents in plants were higher with inorganic iodine than organic source. Iodine concentrations in shoot were associated with soil CEC and organic matter. This study indicated that a suitable soil amendment can be used for better I bioavailability.

这项研究的目的是研究使用不同的土壤改良剂后碘（I）的生物利用度。比较了有机和无机离子源对薄荷中离子浓度的影响。用木屑，稻壳，木炭，木灰和石膏以10 t ha-1的速率对土壤进行修正。结果表明，土壤改良剂的使用显着增强了薄荷的生物量。修正案中的生物量产量依次为木炭>木灰>锯末>稻壳>石膏>不修正。修正案还显着增加了植物中的I浓度。薄荷芽中的碘浓度在木灰和木炭中高于其他处理。无机碘比有机源中植物中的碘含量更高。枝条中的碘浓度与土壤CEC和有机质有关。