Eppawela rock phosphate as a source of phosphorus for rubber

Yogaratnam, N.De Mel, G2012-07-312012-07-311987Bulletin of the Rubber Research Institute of Sri Lanka24pp.35-39https://dl.nsf.gov.lk/handle/1/9229AgricultureFertilizersWorld productionSoilsYieldEppawela rock phosphate as a source of phosphorus for rubberArticle