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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 Some practical aspects of rehabilitation and replanting(Tea Research Institute. Thalawakele, 1958) Pethiyagoda, T.B.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.