GSSP is a straight phosphatic multi-nutrient fertilizer which contains 14.5% water soluble P2O5, 12% sulphur, 21% calcium and some other essential micro nutrients in small proportions. GSSP, which is a poor farmer’s fertilizer (price-wise), is an option to optimise the use of phosphatic fertilizers. It also helps to treat sulphur deficiency in soils (40% Indian soil is sulphur deficient) as well for further enhancement of yields at the least cost.