4.Journals Published in Sri Lanka

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Organic manure as a supplementary source of nitrogen in wetland rice cultivation
(Soil Science Society of Sri Lanka:Colombo, 2001) Sirisena, D.N.; Wickramasinghe, W.M.A.D.B.; Weerakoon, W.M.W.; Bandara, S.T.; Kumaragamage, D.
Suitability classification of some important soil fertility parameters of paddy fields in Kurunegala district
(Soil Science Society of Sri Lanka:Peradeniya, 2008) Rathnayake, W.M.U.K.; Sirisena, D.N.; Bandara, W.M.J.; Wickramasinghe, W.M.A.D.B.