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Abstract
This study examines the comparative profitability of both deep and shallow tubewell irrigation technology. Regarding this, 3 DTWs and 11 STWs were randomly selected for farm survey. Kharera union of Kasba upazila of Brahmanbaria district was selected purposively. Data were collected during the period of February 2000 to July 2000. Tabular method of analysis as well as financial analysis and sensitivity analysis were applied. Evidence shows that investment in STWs was found to be profitable especially electrically operated STWs were more profitable than diesel operated STWs. While the DTW operation appeared as a loosing concern from the owners' point of view. Results of the sensitivity analysis suggested that the investments in diesel operated STWs were in break-even level with 20 per cent increase in operation and maintenance cost while electrically operated STWs were in break-even level with 15 per cent decrease in gross benefits, other things remaining the same. The result of sensitivity analysis also suggested that with 15 per cent decrease in gross benefit investments in diesel operated STWs were incurring loss. Thus, the investments in tubewell operation was largely affected either by increase in operation and maintenance cost or by decrease in water price. Finally, based on the above findings of the study, some recommendations were suggested for policy implication.