Staff Publications
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Item Responses of five tropical pasture species to application of apatite(Rubber Research Institute:Agalawatta, 1986) Pathiratne, L.S.S.; Waidyanatha, U.P.De S.; Peries, O.S.Shoot growth and phosphorus content of Pueraria, Centrosema, Stylosanthus, Panicum and Paspalum were best at 500ppm and better at 100ppm than at zero ppm apatite. Root growth on the other hand was stimulated at 100ppm and marginally inhibited at 500ppm.Both relative shoot and root growth responses were least for Styl;osanthus which showed a notable ability to take up P from untreated soil compared to the other species. This may be related to its greater calcium uptake ability as evidence d in much higher calcium concentrations in its shoot than in the other. The grasses recovered for more P from both treated and untreated soil than the legumes.Item The management of plant diseases with special reference to Hevea(Rubber research Institute:Agalawatte, 1984) Peries, O.S.; Liyanage, A.De S.Item Effect of weather factors on disease Establishment and sporulation of Phytopthora meadi on rubber pods(Rubber Research Institute of Sri Lanka:Agalawatta, 1983) Liyanage, A. De S.; Peries, O.S.; Dharmaratne, A.; Dantanarayana, D.M.Item The use of sulphur for the control of white root disease caused by Rigidoporus lignosus(Rubber Research Institute of Sri Lanka:Agalawatta, 1983) Peries, O.S.; Liyanage, A.N.D.N.I.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.Item Biological control of the diseses of the Hevea rubber tree(1984) Peries, O.S.; Liyanage, A.de S.Item Toxic hazards of the chemical industry with special reference to agriculture(1984) Peries, O.S.Item Development to increase income from the rubber industry(1984) Peries, O.S.