Phosphorus is required by all plants but is limited in soil, creating a problem in agriculture. In many areas phosphorus must be added to soil for crop production. Phosphorus was first added as a fertilizer in the form of single super phosphate (SSP) in the mid nineteenth century, following research at Rothamsted Experimental Station in England. SSP is non-nitrogen fertilizer containing Phosphate in the form of Monocalcium Phosphate and Gypsum which is best suited for Alkali Soil to supplement Phosphate and reduce soil alkalinity.