Division of Soil Science and Agricultural Chemistry, Indian Agricultural Research Institute, New Delhi
*Present address: Indian Grassland and Fodder Research Institute, Jhansi, U.P.
**Present address: Department of Agriculturel Chemistry, College of Agriculture, Nagpur, Maharashtra
Out of three analytical procedures for estimation of sulphate-sulphur in solution, a colorimetric method using barium chromate with certain modifications introduced was found to give high values of recovery and reproducibility than the two turbidimetric techniques. The modified colorimetric method has been found to be quite rapid, free from most of the interferences and can be suitably adopted in routine soil testing programme.
Sulphur, analytical techniques, barium chromate, turbidimetric procedures
