Journal of the Rubber Research Institute of Sri Lanka
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Item The efficiency use of phosphatic fertilizer in relation to the phosphorus fixing capacities of the rubber soils(Rubber Research Institute. Agalawatta, 1977) Silva, C.G.; Kumarakulasuriya, S.; Wickramasinghe, L.J.Item Studies on inoculation of cover legumes for improving nitrogen fixation(Rubber Research Institute. Agalawatta, 1977) Waidyanatha, U.P. De S.; Pathiratne, L.S.S.; Ariyaratne, W.A.Many rhizobial strains were screened for their nodulating ability against Pueraria, Centrosema, Calopogonium and Desmodium spp. using seedlings grown in nutrient agar. Pueraria in pots but not in the field. This is probably due to natural populations of rhizobia in the soil which were able to successfully compete with the introduced strains in nodulating on the legume. There was evidence that indigenous rhizobia themselves formed effective nodule and fixed nitrogen.Item Nutrition and fertilizer use in Hevea and associated covers in peninsular Malaysia - a review(Rubber Research Institute. Agalawatta, 1977) Pushparajah, E.The paper reviews some of the latest findings on nutrition of Hevea and effects of fertilizer on latex properties. It also considers work on increased efficiency in use of fertilisers. The latter includes studies on effect of fertilisers on soil properties and availability of fertiliser residues. The use of appropriate covers and their management to increase their efficiency is considered. Additionally, the influence of the covers on the nitrogen nutrition of Hevea is discussed. The information available indicates that the applications of inorganic N fertilisers could be avoided for up to 8-109 years of tapping, with consequent economic benefits.Item How can we most rapidly increase the production of natural rubber(Rubber Research Institute. Agalawatta, 1977) Bonner, J.Item Growth of nursery rootstock seedlings of Hevea brasiliensis Muell. ARG. cv. TJIR 1.part two(Rubber Research Institute. Agalawatta, 1975) Senanayake, Y.D.A.; Jayasekera, N.E.M.; Samaranayake, P.Item Mechanism of the photo-initiation process in polyethyene(Rubber Research Institute. Agalawatta, 1975) Amin, M.U.; Scott, G.; Tillekeratne, L.M.K.Item Some methods for determining leaf areas in Hevea(Rubber Research Institute. Agalawatta, 1975) Waidyanatha, U.P.De S.; Goonasekera, G.A.J.P.R.Item The preparation and properties of low nitrogen constant viscosity rubber(Rubber Research Institute. Agalawatta, 1975) Yapa, P.A.J.Item Improving the viability of the natural rubber industry of Sri Lanka(Rubber Research Institute. Agalawatta, 1973) Dissanayake, A.B.Item The impact of current research on the development of the NR industry(Rubber Research Institute. Agalawatta, 1973) Peries, O.S.