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Item Leaf and soil analysis:a useful tool in the determination of nutrient requirements(National Resources, Energy Science Authority of Sri Lanka:Colombo, 1990) Jayasekara, K.S.Item Boron deficiency in young coconut (Cocos nucifera L.) in Sri Lanka:symptoms and corrective measures(CRI, 1988) Jayasekara, K.S.; Loganathan, P.Item Efficient use of dolomite in coconut cultivation(National Resources, Energy Science Authority of Sri Lanka:Colombo, 1990) Jayasekara, K.S.Item A new Mulch Rake for increased efficiency(Coconut Research Institute. Lunuwila, 1993) Jayasekara, K.S.; Panditharatne, D.P.; Tilekaratne Banda, E.M.A.Item Effects of application of coconut husk and coir dust on the yield of coconut(CRI, 1991-93) Liyanage, M. De S.; Jayasekara, K.S.; Fernandopulle, M.N.