Runoff water harvesting for dry spell mitigation for cowpea in the savannah belt of Nigeria

Adekalu, K. O.; Balogun, Joseph A.; Aluko, O.B.; Okunade, D. A.; Gowing, J.W.; Faborode, MO

doi:10.1016/j.agwat.2009.06.005

Cited by 18 publications

(9 citation statements)

References 16 publications

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“…In addition, the higher probability of longer DS events in areas that are more heavily deforested may lead to water deficit and have consequent negative effects on agricultural production, depending on the cultivar and its stage of development. This relationship between DS events and agricultural problems has already been widely investigated (Carvalho et al, 2000;Barron et al, 2003;Silva & Rao, 2002;Soares & E Nóbrega, 2010;Adekalu et al, 2009;Barron & Okwach, 2005;Fox & Rockström, 2003;Hernandez et al, 2003;McHugh et al, 2007).…”

Section: 1029/2018jd029537mentioning

confidence: 92%

Effects of Deforestation on the Onset of the Rainy Season and the Duration of Dry Spells in Southern Amazonia

2019

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Amazonian deforestation is causing notable changes in the hydrological cycle by altering important precipitation characteristics. This study uses daily rainfall time series data from 112 rain gauges and a recent yearly 1‐km land use data set covering the period from 1974 to 2012 to evaluate the effects of the extent of deforestation at different spatial scales on the onset of the rainy season and on the duration of dry spells in southern Amazonia. Correlation analyses indicate a delay in the onset of 0.12–0.17 days per percent increase in deforestation. Analysis of cumulative probability density functions emphasizes that the likelihood of rainy season onset occurring earlier than normal decreases as the local deforestation fraction increases. In addition, the probability of occurrence of dry spells in the early and late rainy season is higher in areas with greater deforestation. The delayed onset and longer dry spell events in highly deforested areas increase the climate risk to agriculture in the region.

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Section: 1029/2018jd029537mentioning

confidence: 92%

Effects of Deforestation on the Onset of the Rainy Season and the Duration of Dry Spells in Southern Amazonia

2019

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“…There are two groups of runoff water harvesting in farms such as rainwater harvesting and floodwater harvesting, which could be a useful tool to reuse the water in crop production, especially in dry areas, as have been reported by different researchers (Barron and Okwach [11]; Adekalu et al [12]). The average precipitation in Almeria is approximately 250 L m −2 per year, and the rainfall is concentrated around a small number of events in the spring months, therefore the establishment of reservoir regulation becomes essential [13].…”

Section: Introductionmentioning

confidence: 99%

Cascade Cropping System with Horticultural and Ornamental Plants under Greenhouse Conditions

García‐Caparrós

Llanderal

Maksimović

et al. 2018

Water

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Abstract:The blending of drainage with water of low electrical conductivity and the sequential reuse of the drainage water are innovative technologies to manage salts in agricultural drainage. Plants of Cucumis melo were grown in coir grow bags, and Rosmarinus officinalis and Cacti spp. were grown in pots with a mixture of sphagnum peat-moss and perlite. In order to assess the effect and evolution over time of these water treatments on plant growth and water management and removal of nutrients, three water treatments were applied over a period of eight weeks. These were: (1) standard nutrient solution; (2) blended water treatment (drainage water blended with water of low electrical conductivity (EC)) and (3) sequential reuse of drainage water treatment. During the experimental growing period, samples of water supplies and drainages generated in each water treatment were collected weekly and from these data water volume and nutrient loads were calculated. At the end of the experiment, leaf fresh weight of rosemary plants decreased under the fertigation with the blended and sequential reuse water treatments. Nevertheless, the application of blended and sequentially reused water allowed for the saving of significant amounts of water and nutrients in comparison to the standard nutrient solution treatment. Considering these advantages, we strongly recommend the setting-up of these water treatments in areas with water scarcity such as in the Mediterranean Basin.

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“…Le revenu espéré à partir de la pratique de l'ICBI est évalué à 635 240 francs CFA contre 502 210 francs CFA sans irrigation, soit un gain de 26,49 %. (Adekalu et al, 2009). Il est toutefois recommandé d'irriguer les cultures lorsqu'il advient une poche de sècheresse au cours des autres phases de développement (Fox & Rockström, 2003 ;Kar et al, 2006).…”

Section: Analyse Du Comportement D'optimisation De L'agriculteur Par La Simulationunclassified

Évaluation ex ante de l’irrigation de complément dans un contexte sahélien : couplage d’un modèle biophysique à un modèle économique d’exploitation agricole

Zongo¹,

Diarra²,

Barbier³

et al. 2019

Biotechnol. Agron. Soc. Environ.

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Description du sujet. Dans les pays sahéliens, la répartition spatio-temporelle hautement variable des précipitations demeure une menace pour l’agriculture pluviale, malgré le grand nombre de techniques diffusées pour la conservation des eaux et des sols. Objectifs. Analyser plusieurs stratégies d’irrigation des cultures pluviales et évaluer l’impact probable des mesures économiques incitatives en vue de faciliter l’adoption de l’irrigation de complément à partir des petits bassins individuels de collecte des eaux de ruissellement face aux poches de sècheresse. Méthode. Les stratégies possibles d’irrigation de complément et les simulations des mesures économiques incitatives ont été analysées à partir d’un modèle bio-économique appliqué à une exploitation agricole type. Résultats. Les simulations montrent que l’irrigation de complément permet d’accroitre le revenu espéré des agriculteurs, comparativement à la situation sans irrigation. La culture du maïs, du sorgho et du mil sous l’irrigation de complément en année sèche augmente le revenu espéré de 26,49 % (133 030 francs CFA, équivalent à 202,80 euros) comparativement à la situation sans irrigation. Les simulations visant à promouvoir l’irrigation de complément à partir des petits bassins individuels sont axées sur quatre modalités de subventions et un système d’octroi de crédit aux ménages agricoles. Conclusions. Parmi les mesures incitatives, la subvention sous forme de travail contre nourriture pour mobiliser la main-d’œuvre en vue de construire les bassins semble particulièrement adaptée pour la mise à l’échelle de la pratique de l’irrigation de complément à partir des petits bassins individuels.

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Runoff water harvesting for dry spell mitigation for cowpea in the savannah belt of Nigeria

Cited by 18 publications

References 16 publications

Effects of Deforestation on the Onset of the Rainy Season and the Duration of Dry Spells in Southern Amazonia

Effects of Deforestation on the Onset of the Rainy Season and the Duration of Dry Spells in Southern Amazonia

Cascade Cropping System with Horticultural and Ornamental Plants under Greenhouse Conditions

Évaluation ex ante de l’irrigation de complément dans un contexte sahélien : couplage d’un modèle biophysique à un modèle économique d’exploitation agricole

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