International Journal on Science and Technology

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Volume 17 Issue 1
January-March 2026

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Surface irrigation and drainage system performance evaluation of MUVUMBA P8- Marshland

Author(s) Mr. MANZI Steven
Country Rwanda
Abstract The study evaluates the irrigation and drainage performance of an irrigation scheme in MUVUMBA P8 marshland, which has a total area of 1750 ha but only 1500 ha irrigated. The marshland faces water shortages, flooding, and inadequate land and water resource management. The research uses qualitative and quantitative techniques, including Cropwat 8.0 software, to determine crop water requirements and evaluate irrigation system infrastructure. The evaluation of irrigation system infrastructure involves combining physical condition assessment with service delivery performance indicators. Hydraulic checks and flow measurements are also conducted. Current conveyance and application efficiency are determined based on design values and compared to design standards. The results show conveyance losses in the right primary and left secondary canals, attributed to poor drainage and maintenance of primary canals. The average conveyance efficiency for both channels is 63.70%. The agricultural performance varies between 4.001 tons/ha and 6.047 tons/ha per unit of cropped area and 3.052 tons/ha to 5.021 tons/ha per unit of command. The study suggests that the scheme is not performing to its designed capacity, with higher conveyance losses and inadequate maintenance and repair work.
Keywords University of Rwanda, Irrigation System, Application Efficiency, Conveyance Efficiency, Water User Organizations, Water Distribution
Field Biology > Agriculture / Botany
Published In Volume 17, Issue 1, January-March 2026
Published On 2026-02-16
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