HARTI Publications

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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 Institue
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 Institute
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 Institute
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 Institute