HARTI Publications
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Item Cost of production of paddy, Maha 1972/73:a study based on farm record books maintained in five selected districts(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 1974) Izumi, K.; Ranatunga, A.S.; Hector Kobbkaduwa Agrarian Research and Training InstitueItem Cost of production of paddy, Yala 1972 in the district of Hambantota, Polonnaruwa, Kurunegala, Kandy and Colombo(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 1973) Izumi, K.; Ranatunga, A.S.; Agrarian Research and Training InstituteItem Cost of production of paddy, Yala 1972:a study based on record keeping farmers in five selected districts(HARTI:Colombo, 1973) Izumi, K.; Ranatunga, A.S.; Agrarian Research and Training InstituteItem An analysis of the pre-Mahaweli situation in H4 and H5 areas in Kala-Oya basin(Hector Kobbeduwa Agrarian Research and Training Institute:Colombo, 1979) Ranatunga, A.S.; Agrarian Research and Training InstituteItem Environmental and social contraints on paddy production under existing conditions:a case study in Hambantota District(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 1974) Izumi, K.; Ranatunga, A.S.; Hector Kobbekaduwa Agrarian Research and Training InstituteItem A study of five settlement schemes prior to irrigation modernization, Vol.1 : Mahawilachchiya scheme(Hector Kobbeduwa Agrarian Research and Training Institute:Colombo, 1979) Abeysekara, W.A.T.; Ranatunga, A.S.; Agrarian Research and Training InstituteItem Economic implications of some agricultural experiments on paddy in Sri Lanka(HARTI:Colombo, 197?) Tenma, T.; Ranatunga, A.S.; Vithanadurage, N.; Agrarian Research and Training InstituteItem Profitability and resource characteristics of paddy farming(Hector Kobbekaduwa Agrarian Research and Training Institute:Colombo, 1977) Ranatunga, A.S.; Abeysekera, W.A.T.; Hector Kobbekaduwa Agrarian Research and Training Institute