4.Journals Published in Sri Lanka
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Item Testing time domain reflectometer on suitability for measuring soil moisture content of Sri Lankan soils(Soil Science Society of Sri Lanka:Colombo, 2001) Mapa, R.B.; Pathirana, P.H.Item Relationship between clay activity and specific surface with clay mineralogy for some major soils of Sri Lanka(Soil Science Society of Sri Lanka:Colombo, 1996) Mapa, R.B.Item Development and application of a national digital soil database for land resource planning in Sri Lanka(Soil Science Society of Sri Lanka:Colombo, 2003) Eilers, R.G.; Lelyk, G.W.; Goh, T.B.; Mapa, R.B.; Dasanayake, A.R.Item Soils of Muthurajawela wetland and their applicability to agriculture(Soil Science Society of Sri Lanka:Colombo, 2003) Idamekorala, P.; Mapa, R.B.Item Use of variability in determining the minimum sample size to estimate selected soil properties of Alfisols in Sri Lanka(Soil Science Society of Sri Lanka:Colombo, 2002) Mapa, R.B.; Wickramasinghe, S.Item Spatial variability of soil texture, organic carbon and cation exchange capacity of a reddish brown latasolic soil in a slopy landscape(Soil Science Society of Sri Lanka:Peradeniya, 2011) Nayanaka, V.G.D.; Vitharana, U.W.A. .; Mapa, R.B.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 Geostatistical analysis of soil properties to support spatial sampling in a paddy growing alfisol(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2010) Nayanaka, V.G.D.; Vitharana, W.A.U.; Mapa, R.B.Item Aggregate stability of major soils in the wet zone of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1997) Jayalath, K.D.D.; Mapa, R.B.Item Characterization of soil physical properties in Andigama series in relation to coconut root growth(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1996) Vidhana Arachchi, L.P.; Mapa, R.B.; Yapa, P.A.J.; Somapala, H.