Browsing by Author "Upekshani, H.A.N."
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Item Fertilizer usage and land productivity in intensively cultivated vegetable farming systems in Sri Lanka: an analysis based on a questionnaire survey(Postgraduate Institute of Agriculture, University of Peradeniya:Peradeniya, 2018-12) Upekshani, H.A.N.; Dharmakeerthi, R.S.; Weerasinghe, P.; Dandeniya, W.S.