Hettiarachchi,R.PSamarappuli, LMithrasena, UEdirimanne, VThewarapperuma, AChandrasiri, J.A.SGunathilake, Tde Silva, K.E2025-08-272016Proceedings of the sixth Symposium on Plantation Crop Research: Plantation Agriculture towards National Prosperity. Colombo ,2-4 November 2016 ed by Vidhana arachchi ,V.R.M, Herath ,H.M.I.K, Meegaskubura ,M.K, Kumara A.D.N.T. and Nadeesha,M.K.F. p. 13183https://dl-cri.nsf.gov.lk/handle/1/4400enfertilizerssoil nutrientscontrolled releasecoir pithrubber latexred yellow podzolicArticle