Examining: Use of single superphosphate fertiliser developed employing Eppawala rock phosphate to be a supply of phosphorous for rice cultivation The variety and complexity of basement rocks at Eppawala are accompanied by sophisticated matrices of phosphate deposits. Thorough field, geochemical and mineralogical experiments have been completed on phosphatic weathering crusts https://tspforsrilankancrops58902.sharebyblog.com/35448467/a-secret-weapon-for-tsp-for-flowering-plants-sri-lanka