Performance analysis of public funded irrigation projects in Tanzania

Matekere, Eliakim C.; Lema, Ninatubu Mbora

doi:10.1007/s10795-011-9119-9

Cited by 5 publications

(7 citation statements)

References 3 publications

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“…The low irrigation efficiency particularly under RSI was unexpected and indicates problems with flow‐regulating devices and structures thereby complicating management, maintenance and sustainability of the irrigation system in the long term. A similar problem was noted in the Likangala Irrigation Scheme in the same agricultural ecological zone by Mulwafu and Nkhoma () and in several irrigation schemes in Tanzania (Matekere and Lema, ). Yields and water productivity have also been found to be far below potential in many rice‐producing regions and significant improvements can be achieved in crop production by sound management of inputs (Nangia et al ., ; Turral et al ., ).…”

Section: Discussionsupporting

confidence: 68%

“…Information regarding the performance of improved water management technologies versus traditional practices is lacking when making economically and environmentally sound policy decisions. Matekere and Lema () proposed irrigation efficiency and profit maximization as key indicators for assessing the performance of water management systems. Placing emphasis on increasing water‐use efficiency in small‐scale irrigation systems (Le Gal et al ., ) would reduce competing water uses between upstream versus downstream water users (Mul et al ., ), and agricultural versus domestic water consumption (De Fraiture et al ., ; Komakech et al ., ).…”

Section: Introductionmentioning

confidence: 99%

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Performance of Small‐Scale Water Management Interventions on Crop Yield, Water Use and Productivity in Three Agro‐Ecologies of Malawi

Kadyampakeni¹,

Kazombo-Phiri²,

Mati

et al. 2014

Irrigation and Drainage

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Agricultural water management interventions play a critical role in mitigating hunger during droughts and dry seasons in southern Africa. A study was conducted in Malawi to compare the performance of improved agricultural water management interventions with traditional water management practices to assess the performance of the interventions on crop yield and water use. The study used questionnaires and focused group discussions to collect data from farmers and key informants. The results showed significant gains using regulated surface irrigation compared with unregulated surface irrigation. The results showed that yield increases of 33 and 37% for onion and tomato respectively were obtained from wetland seepage irrigation compared with upland cultivation. Treadle pump irrigation increased crop production by 5-54% compared with water can irrigation. Treadle pumps also increased gross and net incomes by ≥12%, suggesting that farmers using the treadle pump were able to realize higher incomes across all crop enterprises compared with farmers using water cans. However, there is a dire need to improve the efficiency of the surface irrigation systems for rice production because the water applied was about two to three times the gross irrigation requirement which could result in environmental degradation through increased salinity and waterlogging. Copyright © 2014 John Wiley & Sons, Ltd. RÉSUMÉLes interventions dans la gestion des eaux agricoles jouent un rôle essentiel dans l'atténuation de la faim pendant les sécheresses et les saisons sèches de l'Afrique australe. Une étude a été menée au Malawi pour comparer la performance de l'amélioration des interventions de gestion des eaux agricoles aux pratiques de gestion traditionnelle sur des critères de rendement des cultures et d'utilisation de l'eau. L'étude a utilisé des questionnaires et des discussions de groupe ciblées pour collecter des données auprès des agriculteurs et des informateurs clés. Les résultats ont montré des gains importants dans le rendement des cultures, le revenu des agriculteurs et la productivité de l'utilisation de l'eau. Les résultats ont montré des gains significatifs en utilisant l'irrigation de surface régulée par rapport à l'irrigation de surface non régulée. Les résultats ont montré que les augmentations de rendement de 33 et 37% pour l'oignon et la tomate ont été respectivement obtenues sur les parcelles en zones humides par rapport à la culture sur les hautes terres. L'irrigation par la pompe à pédales a augmenté la production agricole de 5 à 54% par rapport à l'irrigation conventionnelle. Les pompes à pédales ont également augmenté les revenus bruts et nets par >12%, ce qui suggère que les agriculteurs utilisant la pompe à pédales ont pu réaliser des revenus plus élevés dans toutes les cultures par rapport aux agriculteurs qui utilisent des bidons d'eau. Cependant, il y a un besoin urgent d'améliorer l'efficacité des systèmes d'irrigation de surface pour la production de riz parce que l'eau appliquée était d'environ deux à trois

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Section: Discussionsupporting

confidence: 68%

Section: Introductionmentioning

confidence: 99%

Performance of Small‐Scale Water Management Interventions on Crop Yield, Water Use and Productivity in Three Agro‐Ecologies of Malawi

Kadyampakeni¹,

Kazombo-Phiri²,

Mati

et al. 2014

Irrigation and Drainage

View full text Add to dashboard Cite

show abstract

“…The low irrigation efficiency particularly under RSI was unexpected and indicated problems with flow regulating devices and structures thereby complicating management, maintenance and sustainability of the irrigation system in the long-term. A similar problem was noted in Likangala Irrigation Scheme in the same agricultural ecological zone by [44] and in several irrigation schemes in Tanzania [28]. Yields and water productivity have also been found to be far below potential in many rice producing regions and significant improvements can be achieved in crop production by sound management of inputs [45] [46].…”

Section: Impacts Of the Regulated Surface Irrigation On Crop Yields supporting

confidence: 53%

“…The information regarding the performance of improved water management technologies vs. traditional practices is lacking for making economically and environmentally sound policy decisions. Researchers [28] proposed the irrigation efficiency and profit maximization as key indicators for assessing the performance of water management systems. Placing emphasis on increasing water-use efficiency in small-scale irrigation systems [29] would reduce competing water uses between upstream vs. downstream water users [30], and agricultural vs. domestic water consumption [2] [8].…”

Section: Introductionmentioning

confidence: 99%

Impacts of Small-Scale Water Management Interventions on Crop Yield, Water Use and Productivity in Two Agro-Ecologies of Malawi

Kadyampakeni¹,

Kazombo-Phiri²,

Mati³

et al. 2014

View full text Add to dashboard Cite

A study was conducted in Malawi to compare the performance of improved agricultural water management interventions with traditional water management practices to assess the impact of the interventions on crop yield and water use productivity. The study used questionnaires and focused group discussions to collect data from farmers and key informants. The results showed significant gains in crop yield, farmer income, and water use productivity using the regulated surface irrigation compared with unregulated surface irrigation. Treadle pump irrigation increased crop production by 5% -54% compared with water can irrigation. Treadle pumps also increased gross and net incomes by >12% suggesting that farmers using the treadle pump were able to realize higher incomes across all crop enterprises compared with farmers using water cans. However, there is a dire need to improve the efficiency of the surface irrigation systems for rice production because the water applied was about 2 to 3 times the gross irrigation requirement (~10,780 m 3 ·ha −1 ) which could result in environmental degradation through increased salinity and water logging.

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“…NEPAD, 2003) in SSA are likely to be based on evidence that is not sufficiently robust. This supports recent studies (Matekere and Lema, ) that reported on performance assessment in smallholder irrigation to be rather ad hoc, fragmented and mainly conducted at the outset of projects to serve the interest of those who initiated the process. It is thus suggested that further targeted research should be undertaken to inform policy formulation.…”

Section: Discussionmentioning

confidence: 97%

Assessing Performance of Small‐Scale Pumped Irrigation Systems in sub‐Saharan Africa: Evidence from a Systematic Review

Kamwamba-Mtethiwa

Knox

2016

Irrigation and Drainage

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Small‐scale irrigation (SSI) has significant potential to increase crop productivity in sub‐Saharan Africa (SSA). Pumped irrigation systems are one of the technologies increasingly being used by smallholder farmers. The aim of this study was to systematically review evidence on the performance of SSI pumped systems, including motorized, treadle, rope and washer, solar and wind pumps. The study revealed a lack of standardization and use of a wide range of indicators to assess performance. Most evidence related to motorized pumps, and these studies confirmed mixed levels of performance; studies relating to other types of pumped system mostly reported a positive impact, although the method of assessment used was critical. Studies reporting positive impacts tended to be those that used socio‐economic based factors such as yield and profitability, whereas studies reporting mixed performance tended to be those that relied more on technically based indicators such as pumping and irrigation system efficiency. The analysis highlights the sensitivity of interpreting findings from different studies, and how caution should be exercised when comparing performance within and between different types of irrigation systems. The implications for supporting policy development and identifying future research gaps are discussed. Copyright © 2016 John Wiley & Sons, Ltd. Copyright © 2016 John Wiley & Sons, Ltd.

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Performance analysis of public funded irrigation projects in Tanzania

Cited by 5 publications

References 3 publications

Performance of Small‐Scale Water Management Interventions on Crop Yield, Water Use and Productivity in Three Agro‐Ecologies of Malawi

Performance of Small‐Scale Water Management Interventions on Crop Yield, Water Use and Productivity in Three Agro‐Ecologies of Malawi

Impacts of Small-Scale Water Management Interventions on Crop Yield, Water Use and Productivity in Two Agro-Ecologies of Malawi

Assessing Performance of Small‐Scale Pumped Irrigation Systems in sub‐Saharan Africa: Evidence from a Systematic Review

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