Journal of the Rubber Research Institute of Sri Lanka
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Item Effect of leaf litter on direct and indirect mobilization of P from apatite(Rubber Research Institute. Agalawatta, 1987) Pathiratne, L.S.S.; Waidyanatha, U.P. De S.; Peries, O.S.Leaf litter as direct and indirect means of improving P availability from apatite was tested. Application of leaf litter impo=roved the P uptake by indicator crops but did not influence the availability of P from applied apatite.Item Effect of vesicular-arbuscular mycorrhizae on seedling of Hevea and Pueraria phaseoloides(Rubber research Institute. Agalawatte, 1984) Jayaratne, A.H.R.; Peries, O.S.; Waidyanatha, U.P. De S.Hevea seedlings showed a slight growth responce when inculated with Gigaspora margarita out of four species, tested in sterilised soil. There were no significant differences in the uptake of nutrient by mycorrhizal Hevea plants. Non-mycorrhizal Pueraria plants grew very poorly unless they were given liberal quantities of phosphate fertilizer, confirming previous reparts. All mycorrhizal plants took up more nutrients from soil than non-mycorrhizal plants. Effective nodule formation wassignificantly grater in mycorrhizal plants when phosphorus was added.Item The management of plant diseases with special reference to Hevea(Rubber research Institute. Agalawatte, 1984) Peries, O.S.; Liyanage, A. De S.Item The impact of current research on the development of the NR industry(Rubber Research Institute. Agalawatta, 1973) Peries, O.S.Item The control of white root disease in Sri Lanka(Rubber Research Institute. Agalawatta, 1973) Liyanage, G.W.; Peries, O.S.Item Scope of conference(Rubber Research Institute. Agalawatta, 1973) Peries, O.S.Item Studies on the biology of phytophthora meadii(Rubber Research Institute. Agalawatta, 1972) Peries, O.S.; Fernando, T.M.Item Summary and conclusions(Rubber Research Institute. Agalawatta, 1971) Peries, O.S.Item Observations on the development of the sporophore of Rigidoporus lignosus and the release and germination of basidiospores(Rubber Research Institute of Sri Lanka. Agalawaththa, 1982) Liyanage, I.; Peries, O.S.; Liyanage, A. de S.; Wettasinghe, C.Item Fertilizer use among perennial crops(Rubber Research Institute of Sri Lanka. Agalawaththa, 1982) Peries, O.S.; Yogarathnam, N.