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Item Degree of phosphorous saturation in intensively cultivated soils in Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2010) Amarawansha, E.A.G.S.; Indraratne, S.P.Item Farm level economic analysis of soil erosion control in tobacco lands in the Hanguranketha area(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1993) Gunatilake, H.M.; Abeygunawardena, P.Item Endomycorrhizas of rubber growing soils of Sri Lanka(Rubber Research Institute of Sri Lanka. Agalawaththa, 1982) Jayaratne, A.H.R.Item Humification of polyphenol-rich plant residues(Tea Research Institute. Thalawakele, 1984) Sivapalan, K.Item Re-demarcation of Conservation Areas in Sri Lanka based on soil erosion potential(Soil Science Society of Sri Lanka:Colombo, 2002) Munasinghe, M.A.K.; Pushpakumara, S.M.V.Item Characterization of soil water movement in reddish brown earth soils (alfisol)(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1990) Pathmarajah, S.; Mapa, R.B.Item The soils of ceylon(Coconut Research Institute:Lunuwila, 1969) Perera, K.S.O.Item Use of a cation exchange resin for determination of plant available micro nutrients in upland soils of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1998) Perera, K.T.M.S.; Somasiri, L.L.W.; Jayakody, A.N.Item Geoenvironmental assesment for nitrate pollution of ground water by fertilization in shiroishi plain in Japan(Soil Science Society of Sri Lanka:Colombo, 2002) Gunatilake, S.K.; Iwao, Y.; Gunatilake, J.; Kumaragamage, D.