Bulletin of the RRISL
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Item The sussess story down the ages: the role of rubber breeders in Sri Lanka(Rubber Research Institute of Sri Lanka, 2009) Seneviratne, P; Karunasekera, K.B.A.; Liyanage, K.K.; Rupatunge, K.W.; Gamage, A.K.; Peiris, H.P.Item A century of rubber research - developments in rubber planting materials(Rubber Research Institute of Sri Lanka, 2009) Seneviratne, P; Wijesekera, G.A.S.Item Sussessful establishment of rubber plantations: lessons from 100 years(Rubber Research Institute of Sri Lanka, 2009) Seneviratne, P; Perera, M.K.P.Item Planting rubber in Eastern province of Sri Lanka: Potential for carbon trading under clean develiopment mechanism(Rubber Research Institute of Sri Lanka, 2010) Iqbal, S.M.M.; Rodrigo, V.H.L.; Munasinghe, E.S.Item Use of rainfall patterns for efficient operation of agronomic practices in rubber plantations: The cast of Moneragala district(Rubber Research Institute of Sri Lanka, 2010) Wijesuriya, Wasana; Herath, Keminda; Karunaratne, SenaniItem Biochar and its potential uses in rubber plantations(Rubber Research Institute of Sri Lanka, 2010) Dharmakeerthi, R SItem A small scale open sun dryer for sheet rubber drying(Rubber Research Institute of Sri Lanka, 2010) Siriwardena, S.M.M.; Perera, K.K.C.K.; Siriwardena, T.A.S.; Ranasinghe, J.A.D.S.S.Item Rubber Research in Sri Lanka - the past 100 years and the future(Rubber Research Institute of Sri Lanka, 2010) Nugawela, AItem Proposed solar drying systems for crepe rubber drying(Rubber Research Institute of Sri Lanka, 2010) Siriwardena, SItem Increasing productivity: A tool to mitigate adverse impacts of wage hikes on the performance of plantations(Rubber Research Instittute of Sri Lanka, 2010) Nugawela, APlantation workers are given a wage increase once in every two years following the collective agreement between the Plantation Management Companies and the relevant trade unions. This is necessary to ensure the services of the workers to the plantations by discouraging them moving into other sectors that may offer better daily wages and also to ensure them a comfortable life. However, wage increases will invariably increase the cost of production. Therefore, sustaining performance whilst accommodating such wage increases is a challenge the management has to face. This scenario demands the adoption of proper strategies aimed at keeping the cost of production at the lowest possible level. This is mandatory as the growers are unable to increase the selling price of their produce when the cost of production increases since the rubber prices as for any other commodity is determined elsewhere by the global supply and demand situation. This article is aimed at discussing strategies the growers could adopt to minimize their cost of production to mitigate increasing costs due to same in wages and other inputs.Item Application technology: Knapsack sprayers in the management of rubber nursery disease(Rubber Research Institute of Sri Lanka, 2010) Fernando, T H P S; Wijerathna, CItem Transition from rubber to tea in Baduraliya area in the Kalutara district: a case study on perceptions of farmers and economic feasibility(Rubber Research Institute of Sri Lanka, 2010) Kulasekera, K P; Wijesuriya, Wasana; Dissanayake, D M A P; Abeywickrama, L MThis study was carried out in Baduraliya area in the Kalutara district. The sample consisted of 104 farmers including 29 rubber growers who transferred into other crops. A structured questionnaire and participatory tools were employed in the study. The transition from rubber to other crops or uses was 28% and 94% out of it was for tea. The major factors behind this decision were; fluctuating rubber prices, shortage of latex harvesters, disease outbreaks and rain interference. Those who transferred to tea cultivation have mentioned that the involvement in tea does not permit them to engage in another occupation, it reduced leisure time and has adverse impacts on environment. The cash-flow analysis confirmed that the Net Present Value (NPV) and Internal Rates of Return (IRR) values were high for tea although Benefit Cost (BC) ratio was slightly high for rubber. However, tea has better prospects in this area, since the payback period was three years for tea and 10 for rubber. Hence, it is important to take measures to reduce immature period and maximize the economic benefits through intercropping during the immature stage of rubber.