Ratnayake, U.A.J.Weerasinghe, K.D.N.Vitharana, U.W.A.Chandika, K.K.J.2019-02-062019-02-062018Tropical Agricultural Research, 29(4):p.293-299https://dl.nsf.gov.lk/handle/1/24293Acid sulphate soilPhosphorusRock phosphateRicePotential of Eppawala rock phosphate as a phosphorus fertilizer for rice cultivation in acid sulphate soils in Matara district of Sri LankaArticle