2016 年 7 巻 2 号 p. 81-86
The main objective of this study is to compare the characteristics between the local farmers who conduct traditional upland farming without chemical fertilizer and the local farmers who depend on chemical fertilizer. The results of the analysis are summarized as follows. 1) According to the results of Multiple Correspondence Analysis, it was clear that the preference divisions of the local farmers who depend on chemical fertilizer were “Gender”, “Age”, “Family number”, “Duration of residence”, “Irrigation facility” and “Multiple cropping” as important characteristics for the classification. 2) The results from the Biological and Chemical Technology Method indicated that chemical fertilizers were applied intensively in farmlands with low soil fertility. Therefore, it was considered that the contribution of the current capital, such as chemical fertilizer, was not effectively conducted. 3) In the research site, the estimated value of technical efficiency showed the existence of technical inefficiency in upland farming systems.
