Journals
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Item The current thinking on the substitution of urea for sulphate of ammonia in tea plantations(TRI:Talawakele, 1986) Wickremasinghe, K.N.Item Effect of urea and ammonium sulphate on the nitrification and the release of potassium , magnesium and calcium in acid tea soils(Tea Research Institute. Talawakelle, 1985) Wickremasinghe, K.N.; Nalliah, P.; Wijedasa, M.A.Item Effect of urea and ammonium sulphate on sulphur nutrition of tea(Tea Research Institute. Talawakelle, 1986) Wickremasinghe, K.N.; Ananthacumaraswamy, S.; Amarasekera, A.R.Item Influence of levels of nitrogen and potassium fertilizers on chlorophyll content in mature clonal tea leaves(Tea Research Institute. Talawakelle, 1986) Krishnapillai, S.; Ediriweera, V.L.Item Inhibitory effects of commercial potassium chloride on the nitrification rates of added ammonium sulphate in an acid red yellow podzolic soil(Tea Research Institute. Thalawakele, 1984) Golden, D.C.; Sivasubramaniam, S.; Sandanam, S.; Wijedasa, M.A.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 Chemical changes in young tea plants (Camellia sinensis L.) tissues following application of fertilizer nitrogen(Tea Research Institute. Thalawakele, 1974) Selvendran, R.R.; Selvendran, S.Item Studies on the mineral nutrition of tea 4 - ammonium and nitrate as forms of nitrogen for tea plants in sand culture(Tea Research Institute. Thalawakele, 1971) Pethiyagoda, U.; Krishnapillai, S.Item Studies on the use of urea as a fertilizer for tea in Ceylon 2. urease activity in soils(Tea Research Institute. Thalawakele, 1970) Bhavanandan, V.P.; Fernando, V.Item Effect of nitrogen, phosphorus, potassium and magnesium fertilizers on the leaf nutrient composition of low-grown tea in Sri Lanka(Tea Research Institute. Thalawakele, 1980) Wettasinghe, D.T.; Watson, M.