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Item Litter accumulation from Mucuna bracteata cover crop and its effects on some soil chemical properties in rubber plantations(Rubber Research Institute. Agalawatta, 2010) Chathurika, S.; Samarappuli, L.; Mapa, R.B.Item Distribution of Mn and Zn in rubber growing soils and its status in relation to selected management practices(Rubber Research Institute. Agalawatta, 2000) Samarappuli, L.; Perera, A.M.A.; Lalantha, H.K.; Rajapakse, W.Item Mucuna bracteata. ideal cover crop for efficient soil and water management in rubber cultivation(Faculty of Agriculture,University of Ruhuna. Kamburupitiya, 2003) Samarappuli, L.; Karunadasa, P.; Mitrasena, U.; Shantha, N.Item Rubber growing will enhance environmental sustainability. Joachim memorial lecture - 2010(Soil Science Society of Sri Lanka:Peradeniya, 2010) Samarappuli, L.Item Mulching with paddy straw. to reduce immaturity and improve yeilds(Rubber Research Institute of Sri Lanka. Agalawatta, 1995) Samarappuli, L.