Loganathan, P.Dayaratne, P.M.N.Shanmuganathan, R.T.2014-07-012014-07-011984COCOS, v2 p:29-43https://dl-cri.nsf.gov.lk//handle/1/4089enSoilsSoil nutrient statusPhosphorusEvaluation of the phosphorus status of some coconut growing soils of Sri LankaArticle