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Item The use of fertilizer for tea in Sri Lanka -2- foliar and soil analysis with particular reference to potassium(Tea Research Institute. Thalawakele, 1976) Sivasubramaniam, S.; Jayman, T.C.Z.Item Studies on the performance of two phosphatic fertilizers on tea soils with respect to the P-adsorption, mineralogy and plant species using 32P labelled fertilizer(Tea Research Institute. Thalawakele, 1981) Golden, D.C.; Weed, S.B.; Sivasubramaniam, S.; Nalliah, P.