Efficiency of peat-mixed rock phosphates on some alfiisols and ultisols of Sri Lanka - Ratnayake, M.P.K.; Kumaragamage, D.; Dahanayake, K. (Soil Science Society of Sri Lanka:Colombo, 1996)
Keywords: Agriculture; Eppawala rock phosphate; Selectively-mined primary apatite crystals; Solubility; Phosphorus fertilizers; Soil chemistry; Peat