4.Journals Published in Sri Lanka
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Item Land use effects on aggregate size distribution in reddish brown latasolic soils (Rhodudults)(Soil Science Society of Sri Lanka:Peradeniya, 1991) Mapa, R.B.; Wanasundara, W.M.N.U.Item Determination of insitu field capacity of noncalcic brown soils(Soil Science Society of Sri Lanka:PEradeniya, 1989) Bodhinayake, W.L.; Mapa, R.B.Item Characterization of soil hydraulic properties of the noncalcic brown soils(Soil Science Society of Sri Lanka:Peradeniya, 1987-88) Mapa, R.B.; Bodhinayake, W.L.Item Paddy sector. challenges and changes in 2020(People's Bank. 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 Hydrological implications of soil water dynamics under an alley cropping system in the mid country intermediate zone of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1998) Nayakekorala, H.B.; Mapa, R.B.; Maddumabandara, C.M.Item Suitability of Mid country wet zone lands for plantation agriculture(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1998) Jayalath, K.D.D.; Dassanayake, A.; Mapa, R.B.Item Effect of texture and organic matter on soil water retention parameters(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2002) Rajapaksha, K.L.N.; Mapa, R.B.; Sassanayake, A.R.Item Soil water dynamics in alley cropping systems in the dry zone of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2001) Keerthisena, R.S.K.; Mapa, R.B.; Yapa, P.A.J.Item Effect of mulching, potassium fertilizer and clones in minimizing drought effects in young tea(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1992) Ekanayake, P.B.; Sangakkara, U.R.; Mapa, R.B.