Journal of the Rubber Research Institute of Sri Lanka
Permanent URI for this collectionhttps://dl.nsf.gov.lk/handle/1/8676
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Item Training induced knowledge and adoption of harvesting technologies in rubber smallholdings in the Kegalle district of Sri Lanka(Rubber Research Institute:Agalawatta, 2017) Gunarathne, P.K.K.S.; Dissanayake, D.M.A.P.; Ranawaka, R.A.D.; Wijesuriya, W.Item Clonal differences in rock phosphate utilization by Hevea(Rubber Research Institute. Agalawatta, 1991) Dissanayake, D.M.A.P.; Dissanayake, T.; Gunasekera, R.; Jayasekera, S.Genotypic variability in utilization of rock phosphates including the local source Eppawale was evaluated using Hevea clones during the early immature phase. All the clones responded to P fertilization, and the responces were related to the source of fertilizers and other soil characteristics. Plants of clone RR1C 121 utilized Eppawala rock phosphate efficiently, both in Matale and Boralu soil. But, plants of clone RR1C 110 were able to use both rock phosphate sources only in Matale soils. However, responce to rock phosphate from plants of 100 was comparatively low in relation to P uptake and dry matter production. The necessity of testing these clones for the locally available phosphate source in the field scale is also discussedItem Influnce of fertilizers on growth and mineral composition of Hevea seedlings grown in the field nursery(Rubber Research Institute. Agalawatta, 1986) Dissanayake, D.M.A.P.; Mithrasena, U.Item Some issues related to sustainability in the smallholder rubber sector(Rubber Research Institute . Agalawatta, 2007) Wijesuriya, W.; Dissanayake, D.M.A.P.; Herath, K.; Edirisinghe, J.; Abeywardene, V.Item Preference ranking as a participatory tool in identifying farmers' perceptions in planning effective dissemination programmes(Rubber Research Institute. Agalawatta, 2003) Wijesuriya, W.; Dissanayake, D.M.A.P.; Wijeratne, M.; Edirisinghe, J.; Herath, K.; Abeywardene, V.