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Item Effects of tree root competition on availability of soil and plant nutrients,soil water and light interception in hedgerow intercrops with different tree species in the mid-country intermediate zone(National Science Foundation of Sri Lanka, 2000-06) De costa, W.A.J.M.; Chandrapala, A.G.Item Competition between six hedgerow tree species and mung bean(vigna radiata(L)wilczek)in the mid-country intermediate zone(National Science Foundation:Colombo, 2000) De costa, W.A.J.M.; Chandrapala, A.G.Item Confirmation of salt-tolerant gene expression in a Sri Lankan rice variety At354 by Nothern hybridization(2010) Darmadasa, K.N.P.; De Costa, D.M.; De costa, W.A.J.M.Item Effects of tree root competition on availability of soil and plant nutrients,soil water and light interception in hedgerow intercrops with different tree species in the mid-country intermediate zone(National Science Foundation:Colombo, 2000) De costa, W.A.J.M.; Chandrapala, A.G.Item Competition between six hedgerow tree species and mung bean(vigna radiata(L)wilczek)in the mid-country intermediate zone(National Science Foundation of Sri Lanka, 2000-06) De costa, W.A.J.M.; Chandrapala, A.G.