Browsing by Author "Jayalath, C."
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Item The clonal composition of budwood nurseries and its role on the productivity of rubber in Sri Lanka(Rubber Research Institute:Agalawatta, 2007) Seneviratne, P.; De Silva, S.A.; Weerakoon, U.S.; De Alwis, M.N.; Zoysa, L.; Jayalath, C.Item Physical, chemical and mineralogical characteristics of commercially available Eppawela and Gafsa rock phosphates(Rubber Research Institute of Sri Lanka:Agalawatta, 1995) Dissanayake, A.; Jayalath, C.Physical, chemical and mineralogical characteristics of commercially available Eppawela rock phosphate (ERP) was compared with a well known rock phosphate, Gasfa from Tunisia. The phosphate content of Eppawela material was low, around 16% and is two times lesser than Gasfa. Also, the extractable P in ERP was two times lesser than that of Gasfa, indicating its inferiority as a P source. A high amount of silica was present in the Eppawela material as an impurity and it therefore requires to ensure the quality control measures in a systematic way before it is marketed.Item Some aspects of ergonomics of rubber tapping and human factors affecting worker productivity(2001) Yogaratnam, N.; Jayalath, C.; Wijesuriya, W.