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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 Beneficial management practices on growth and yield parameters of maize (zea mays) and soil fertility improvement(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2015) Chathurika, J.A.S.; Indraratne, S.P.; Dandeniya, W.S.; Kumaragamage, D.Item Effect of soil amendments on reclamation of saline-sodic soil(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2012) Prapagar, K.; Indraratne, S.P.; Premanandharajah, P.Item Sorption capacity and deficiency of nutrients in some soils of Sri Lanka(Soil Science Society of Sri Lanka:Peradeniya, 2009) Indraratne, S.P.; Thilakarathne, J.K.D.A.K.Item Effective cation exchange capacity. suitability for Sri Lankan soils(Soil Science Society of Sri Lanka:Colombo, 2003) Indraratne, S.P.Item Beneficial nutrient management practices for improving maize (zea mays) yield in a tropical entisol(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2015) Mariaselvam, A.A.; Dandeniya, W.S.; Indraratne, S.P.; Dharmakeerthi, R.S.Item Formulation and testing of site specific fertilizer recommendation for bitter gourd (Momordica charantia L.)(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2007) Amarasekara, M.G.T.S.; Indraratne, S.P.; Kumaragamage, D.; Sultanbava, F.Item Baseline values of cadmium and Zinc in three land uses in a selected mapping unit of the dry zone of Sri Lanka(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2013) Sanjeevani, U.K.P.S.; Indraratne, S.P.; Weerasooriya, S.V.R.; Vitharana, U.W.A.Item High-input agricultural practices on available nutrients and total cadmium in wet zone up country soils of Sri Lanka(Soil Science Society of Sri Lanka:Peradeniya, 2011) Pitumpe Arachchige, P.S.; Indraratne, S.P.Item Soil amendments and fertilizers as sources and sinks of heavy metals. Joachim memorial lecture 2009(Soil Science Society of Sri Lanka:Peradeniya, 2009) Indraratne, S.P.