Browsing by Author "Jayasingha, P."
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Item Fate of urea fertilizers in sandy aquifers: laboratory and field case study from Kalpitiya, Sri Lanka(National Science Foundation:Colombo, 2013-06) Jayasingha, P.; Pitawala, A.; Dharmagunawardhana, H.A.Item Lemongrass-a literature survey(ITI:Colombo; 45p, 1999) Jayasingha, P.