Browsing by Author "Nissanka, W.M.B.S."
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Item Competitiveness as a self motivation to increase productivity in rice:a new extension approach to yaya program(Department of Agriculture:Peradeniya, 2002) Nissanka, W.M.B.S.; Dayaratne, P.M.N.Item Farmers' perception on rice straw application to rice cultivation in Ampara District:a review after five years of yaya demonstration program(Department of Agriculture:Peradeniya, 2004) Nissanka, W.M.B.S.; Dayaratne, P.M.N.; Selvanayagam, N.S.