Browsing by Author "Jayawickrama, S.P."
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Item An investigation on phosphate adsorption in six Sri Lankan soils in relation to their chemical and mineralogical properties(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 1991) Jayawickrama, S.P.; Thenabadu, M.W.; Kumaragamage, D.Item Studies on mineralization of four green manures commonly occuring in mid-country wet zone of Sri Lanka(Soil Science Society of Sri Lanka:Peradeniya, 1989) Jayawickrama, S.P.; Thenabadu, M.W.