Palaniswami, C.Biddappa, C.C.Upadhyay, A.K.2014-08-112014-08-112000Journal of the Indian society of soil science 2000 v-48 i-2 p-234-237http://hdl.handle.net/123456789/4708Four soil types from Kerala viz. sandy (Oxic Quartzipsamments), red sandy loam (Arenic Paleustults), laterite (Oxic Haplustults) and kari (Tropic Fluvaquents) were taken for studying their rate of S-mineralization and oxidation potential. In case of kari, sandy and laterite soils, the cumulative S042-S mineralisation increased up to 40 days after incubation, then reached a plateau after 60 days and subsequently, increased after 80 days of incubation. In case of red sandy loam, increase in SO42--S mineralisation was noticed up to 40 days after incubation followed by a slight decline and subsequent, increase after 80 days of incubation. Oxidised sulphur after six days of incubation was found to be highest in kari soil followed by sandy, laterite and red sandy loam soils. The oxidative capacity of the soils for sulphur followed the same trend.enSulphurmineralisationoxidation potentialsoil typesKeralaArticle