Browsing by Author "Thevarapperuma, A."
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Item Potassium. its status in rubber growing soil of Sri Lanka(Rubber Research Institute:Agalawatte, 2004) Samarappuli, L.; Edirimanna, V.; Thevarapperuma, A.Item Wedelia trilobata (Arunadevi):Is it a threat to rubber plantations(2005) Samarappuli, L.; Thevarapperuma, A.; Gunatillake, T.