@article{oai:u-ryukyu.repo.nii.ac.jp:02006851, author = {池原, 真一 and lkehara, Shin-ichi}, issue = {9}, journal = {琉球大学農家政工学部学術報告, The science bulletin of the Division of Agriculture, Home Economics & Engineering, University of the Ryukyus}, month = {Dec}, note = {1.The sugar industry in the Ryukyus is important in view of cash income of farmers and the Ryukyuan economy as the whole. 2.The author described the historical development of the sugar industry. 3.The sugar cane production can be improved by improvements of variety, fertilization, cultural method and farm management., 紀要論文}, pages = {251--270}, title = {廿蔗の経営経済的研究(1)}, year = {1962} }