Department of Soil Science and Agricultural Chemistry, University of Agricultural Sciences, GKVK, Bangalore, Karnataka, 560065.
Vertical distribution of different forms of sulphur was investigated. In general, all fractions of S decreased with increased depth of the profiles and concentrated more in the first two horizons of the profiles and significantly correlated among themselves and with organic matter. The abundance of various forms of S in the profiles was in the decreasing order: total S > organic S > ignition S > heat soluble S > available S > water soluble + adsorbed S > soluble sulphate S > total water soluble S > adsorbed S. Sixtyfive per cent of the soils were deficient in sulphur.
Vertical distribution, forms of S, base unsaturated soils of rice fallows, abundance
