Dissanayake, A.B.2013-05-082013-05-081973Journal of the Rubber Research Institute of Sri Lanka50(3-4)pp.244-255https://dl-rri.nsf.gov.lk/handle/1/1624AgricultureRubber industryProduction efficiencyManuringClonesTapping systemsYield stimulationProduction costsImproving the viability of the natural rubber industry of Sri LankaA