4.Journals Published in Sri Lanka
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Item Fertility evaluation for wet zone soils of Sri Lanka(Soil Science Society of Sri Lanka:Colombo, 1999) Mapa, R.B.Item Land suitability evaluation for cultivation of oil palm in the wet zone of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1997) Kalupahana, A.; Mapa, R.B.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 Sustainable soil management in the 21st century(Faculty of Agriculture, University of Ruhuna. Kamburupitiya, 2003) Mapa, R.B.