Vol. 5, Issue 4 (2017)
Sorption and desorption behavior of sulphur in soils of Tamil Nadu, India
Author(s): B Gokila, S Sivagnanam, P Saravanapandian and K Baskar
Abstract: Adsorption and desorption behaviour of S in soil, the soils were collected at 15 cm depth from the four major soil series (Peelamedu, Palaviduthi, Vylogam and Irugur) of pulses growing areas of Madurai district. From the adsorption study, it was found that the maximum adsorption of sulphur was registered in Palaviduthi series followed by Irugur, Vylogam and Peelamedu series. The adsorption data were fitted in two adsorption isotherms viz., Langmuir and Freundlich equations. Among the two adsorption isotherms, Langmuir isotherm fitted well for sulphur adsorption. With respect to Langmuir adsorption isotherm, the SO42- sorption maxima (b) was observed in the order of Peelamedu > Vylogam > Irugur > Palaviduthi series. The bonding energy was recorded in the order of Irugur > Palaviduthi > Vylogam > Peelamedu series. The Maximum buffering capacity observed in the order of Peelamedu > Palaviduthi > Vylogam > Irugur series. The sorption and desorption capacity of these soils varied moderately with the variations in pH, iron and aluminum oxides, available phosphorus, exchangeable calcium plus magnesium, clay content and organic carbon content of the experimental soils. The data, thus obtained were employed to work out maximum buffering capacity (b) of sulphate sorption, the high value of which essentially favored the sorption processes in these soils. Soils having greater irreversible sulphate sorption capacity require adequate sulphur in order to ensure optimum pulses growth and yield.
Pages: 1118-1123 | 740 Views 73 Downloads
How to cite this article:
B Gokila, S Sivagnanam, P Saravanapandian, K Baskar. Sorption and desorption behavior of sulphur in soils of Tamil Nadu, India. Int J Chem Stud 2017;5(4):1118-1123.