Samarappuli, L.Edirimanna, V.Thevarapperuma, A.2014-07-102014-07-102004Bulletin of the Rubber Research Institute of Sri Lanka, 45:p.27-311391-0051https://dl-rri.nsf.gov.lk//handle/1/2510AgricultureSoil testingSoil typesSoil classificationRubber growing soilPotassium distributionFertilizer applicationPotassium. its status in rubber growing soil of Sri LankaArticle