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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 Relationship between stomatal conductance and leaf water potential in selected forest tree species growing under different levels of natural shade in the mid country wet zone(National Science Foundation:Colombo, 2000) De Costa, W.A.J.M.; Abeysinghe, W.A.M.W.K.S.B.; Chandrapala, A.G.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 Relationship between stomatal conductance and leaf water potential in selected forest tree species growing under different levels of natural shade in the mid country wet zone(National Science Foundation of Sri Lanka, 2000-03) De Costa, W.A.J.M.; Abeysinghe, W.A.M.W.K.S.B.; Chandrapala, A.G.Item Evaluation of different organic manures on soil properties, growth and yield of rice and maize under rice/maize crop rotation(Department of Agriculture:Peradeniya, 2005) De Silva, S.H.S.A.; Chandrapala, A.G.; Jayalath, H.A.P.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.