Japan Society for the Promotion of Science:Grants-in-Aid for Scientific Research
Date (from‐to) : 1995 -1997
Author : DOI Tokihisa, CHINO Jinjiro, SASAKI Ichio, KONDO Takumi, OSANAMI Fumio, KUROKAWA Isao
In this project, we intended a comparative study of the different effect of irrigation on agricultural production with and without foreign aid. In the first year of the project, we studied natural gravity irrigation in Sankhu village, Kathmandu basin. For the easy accessibility to the market, the diffusion of irrigation system made it possible the potato production in the dry season. The farmers in Sankhu became attractive to introduce potato as cash crop.
As a case study in the second year, we selected Janakpur in Terai, in the most important rice production area in Nepal. More than twenty years ago, Japan supported to install deep tube-wells in this area. Today, there are many shallow tube-wells and deep tube-wells. Because of high cost of diesel and poor managemant efficiency, deep tube-well are not so highly used by farmer's group. On the contrary, small scale shallow tube wells are used by each farmer mainly for wheat production.
For the diffusion of irrigation in the dry season, foreign aids may be preferable to small scale technology such as shallow tube-wells rather than large scale tube wells which are difficult to manage.