Monographs
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Item Change in other field crop cultivation in the north western province(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 2013) Wickramasinghe, W.Item Behaviour of marketed surplus in paddy price determination in Sri Lanka(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 2016) Wickramasinghe, W.; Wijesuriya, N.; Priyadarshana, D.Item Multiple effects and impact of small farmer (FFS Based) seed potato production in Badulla district:Dry zone livelihod support and Partnership programme (DZLISPP)(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 2012) Wickramasinghe, W.; Jayasooriya, C.; Hector Kobbekaduwa Agrarian Research and Training InstituteItem Fertiliser policy on paddy farming:an evaluation of 2005 subsidy programme(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 2010) Wickramasinghe, W.; Samarasinghe, G.; Hector Kobbekaduwa Agrarian Research and Training InstituteItem Alternative approaches to substitute chemical fertiliser in the food crop sector:integrated farming system approach and beyond(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 2010) Wickramasinghe, W.; Hector Kobbekaduwa Agrarain Research and Training Institute