Tea Bulletin
Permanent URI for this collectionhttps://dl.nsf.gov.lk/handle/1/19693
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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 Fertilizer nitrogen utilization by tea(TRI:Talawakele, 1981) Wickremasinghe, K.N.Item Soil acidity and its effects on soil fertility and nutrient uptake(TRI:Talawakelle, 1982) Wickremasinghe, K.N.