Browsing by Author "Wickramasinghe, K.N."
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Item A comparative study of the efficiency of utilization of urea and ammonium sulphate by mature tea plants using N-15 labelled fertilizers(Tea Research Institute. Thalawakele, 1984) Wickramasinghe, K.N.; Nalliah, P.; Paramasivam, S.Item To evaluate the efficiency of uptake and utilization of potash fertilizers by mature tea in Sri Lanka with special reference to soil fertility, crop production, drought resistance and recovery from pruning.Wickramasinghe, K.N.; Krishnapillai, S.; Weerasinghe, D.K.