Browsing by Author "Handawela, J."
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Item Fertilizer management in alfisols of Sri Lanka(Soil Science Society of Sri Lanka:Peradeniya, 1987-88) Handawela, J.Item Plant nutrition and fertilizers use in rice and upland annual cropping(National Resources, Energy Science Authority of Sri Lanka:Colombo, 1990) Handawela, J.Item Role of potassium fertilizer for stabilizing upland rain fed farming in the dry zone of Sri LankaHandawela, J.; Karunatilaka, W.A.K.