Evaluation of Hydraulic Performance of Irrigation Scheme at Kuraz Sugar Development Project, Jinka, Ethiopia

Mojira, Tamene; Dagalo, Samuel

doi:10.11648/j.ajma.20210902.12

Cited by 2 publications

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“…Based on the total available water capacity, there are four distinct soil textural groups exist, Heavy (vertic) clays (V), Clays (C), Clay over loam (CL) and Sandy; very gravelly; pumice. Soil bulk density is mostly < 1.66 g/cm 3 (Mojira et al, 2021).…”

Section: Soil Typementioning

confidence: 99%

“…The source of water for the scheme emanates from the cofferdam of the Omo River. According to (Mojira et al, 2021) study the mean annual discharge at Kuraz dam site has been estimated at approximately 750 m 3 /s while the monthly average is about 200m 3 /s from January to march, increasing up to 1000 m 3 /s and 1350 m 3 /s from May to September.…”

Section: Water Sourcesmentioning

confidence: 99%

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Evaluation of Irrigation Water Application Techniques at Omo Kuraz Left Bank Canal, SNNPRE, Ethiopia

Shibeshi

Mogiso

Eniyew³

2023

Idn. J. Earth Sci.

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Water loss from furrows can be due to runoff, seepage and deep percolation which may cause yield reduction. This study focuses on the evaluation of irrigation water application techniques and employed experimental observation which included 30 test observations using the bund, cut-off, cut-back, surge, and portable structure techniques. The experiments were carried out in two blocks; block A with 50 m furrow length and that of block B with 100 m furrow length. The experimental design was a randomized complete block design with three replications. The analysis was done using surface irrigation evaluation model and SAS software package. The results of the study showed that at block A, highest application efficiency of 87.0% was obtained with surge flow and followed to this cut-back recorded 86.6%; whereas the lowest application efficiency of 75.00% was obtain by bund technique. Storage efficiency of surge and cut-back recorded 99.00%. The lowest was obtained by bund (88.9%). The distribution uniformity of surge was highest (84.1%). whereas bund technique gave 71.0% of lowest distribution efficiency. At block B, surge registered the highest application efficiency and distribution uniformity of 66.0% and 59.57% whereas; bund technique records the lowest application efficiency of 60%. The surge and cut-back were more efficient in the field recovery of storage requirement resulted above 99.0%. The statistical analyzed results showed that mean application efficiency of 75.69% was obtained using the surge technique; whereas the lowest application efficiency of 70.0% was obtained by the bund. The use of the surge technique reduces irrigation water loss from 30.0% to 24.3% compared to the local bund technique. This is due to the surge performed better in terms of advance rate and efficient moisture content. With the surge, the highest mean DU of 68.07 % was obtained, while the bund technique had the lowest DU (58.32%). Therefore, adoption of the surge is a promising water application and management practice in sugar cane plantation at Omo Kuraz.

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Section: Soil Typementioning

confidence: 99%

Section: Water Sourcesmentioning

confidence: 99%

Evaluation of Irrigation Water Application Techniques at Omo Kuraz Left Bank Canal, SNNPRE, Ethiopia

Shibeshi

Mogiso

Eniyew³

2023

Idn. J. Earth Sci.

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“…Application and storage efficiency, and percolation are essential parameters to measure the effectiveness of irrigation water application and the quantity of water stored in the crop root zone [23]. Effectiveness of infrastructure measure status of functional and nonfunctional infrastructure in the scheme whereas water surface elevation ratios also evaluate change of canal bed due to siltation and weeding problem [24]. Water supply indicators (such as relative water and irrigation supply) are used to describe how supply and irrigation demands are matched [16].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Irrigation Water Management Performance Indicators and Mitigation Measure in Arba Minch Irrigation Scheme, Ethiopia

Gebeyhu Reta,

Dagalo Hatiye,

Muluneh Finsa

2024

Advances in Agriculture

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Irrigated agriculture has been practiced in Ethiopia for several centuries and performance of scheme was poor due to inadequate irrigation water management practices. This study was conducted to evaluate irrigation water management indicators and to suggest possible mitigation measure for Arba Minch irrigation scheme. Primary data such as field and canal flow, soil moisture content, and canal slope were measured on field and soil physical properties were evaluated in the laboratory. Utilizing climate and crop data, the CropWat 8 model was employed to estimate seasonal crop water requirements, while furrow and border irrigation dimensions were designed using SURDEV software. The average field application efficiency (30%), storage efficiency (76%), percolation losses (66%), and overall efficiency (25%). The average relative water and irrigation supply in the scheme were 1.7 and 3.3, respectively. The mean water and land productivity of the wheat, onion, pepper, watermelon, and maize of the Arba Minch irrigation scheme were 0.1 kg/m3 and 0.5 ton/ha, 0.9 kg/m3 and 4.9 ton/ha, 1.5 kg/m3 and 6.2 ton/ha, 0.5 kg/m3 and 0.6 ton/ha, and 0.9 kg/m3 and 4.2 ton/ha, respectively. Watermelon had the highest net returns per hectare ($1,693), followed by onion ($1,829), pepper ($1,221), and wheat ($1,057). In terms of net returns per cubic meter of water, onion led with $0.3, followed by watermelon ($0.2), pepper and wheat with the lowest at $0.1 (top of form). The average value conveyance efficiency, water surface elevation ratio and manning coefficient were 82%, 42%, and 0.06%, respectively. The existing, and corrected length were 843 and 135 m (border irrigation) and 20 and 595 m (furrow irrigation), respectively. In conclusion, the Arba Minch irrigation scheme was very poor performance and low efficiency. To address these issues, farmers and irrigation authorities implement improved irrigation water management practices. Policymakers should promote sustainable water management and explore crops with higher water productivity for overall scheme improvement.

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Evaluation of Hydraulic Performance of Irrigation Scheme at Kuraz Sugar Development Project, Jinka, Ethiopia

Cited by 2 publications

References 0 publications

Evaluation of Irrigation Water Application Techniques at Omo Kuraz Left Bank Canal, SNNPRE, Ethiopia

Evaluation of Irrigation Water Application Techniques at Omo Kuraz Left Bank Canal, SNNPRE, Ethiopia

Assessment of Irrigation Water Management Performance Indicators and Mitigation Measure in Arba Minch Irrigation Scheme, Ethiopia

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