Prospect for increasing grain legume crop production in East Africa

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationWageningen University & Researchen
cg.contributor.affiliationHuazhong Agricultural Universityen
cg.contributor.affiliationUniversity of Nebraskaen
cg.contributor.affiliationInternational Livestock Research Instituteen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationUniversité de Montpellieren
cg.contributor.crpClimate Change, Agriculture and Food Security
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.creator.identifierEndalkachew Wolde-meskel: 0000-0001-6433-0162en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1016/j.eja.2018.09.004en
cg.identifier.projectCCAFS: FP3_CropNutrientGapen
cg.isijournalISI Journalen
cg.issn1161-0301en
cg.journalEuropean Journal of Agronomyen
cg.reviewStatusPeer Reviewen
cg.subject.ccafsLOW EMISSIONS DEVELOPMENTen
cg.subject.ilriCROPSen
cg.subject.ilriLEGUMESen
cg.subject.ilriRESEARCHen
cg.volume101en
dc.contributor.authorLoon, Marloes P. vanen
dc.contributor.authorDeng, N.en
dc.contributor.authorGrassini, P.en
dc.contributor.authorEdreira, J.I.R.en
dc.contributor.authorWoldemeskel, Endalkachewen
dc.contributor.authorBaijukya, Frederick P.en
dc.contributor.authorMarrou, H.en
dc.contributor.authorIttersum, Martin K. vanen
dc.date.accessioned2018-12-14T15:08:53Zen
dc.date.available2018-12-14T15:08:53Zen
dc.identifier.urihttps://hdl.handle.net/10568/98584
dc.titleProspect for increasing grain legume crop production in East Africaen
dcterms.abstractAgricultural production in East Africa (E-Afr) has to increase drastically to meet future food demand. Yield gap assessment provides important information on the degree to which production can be increased on existing cropland. Most research on yield gap analysis has focussed on cereal crops, while legumes have received less attention despite of their relatively large area, and their importance as source of protein in smallholder farming systems in E-Afr. The objectives of this study were to (i) estimate water-limited yield potential (Yw) and yield gaps (Yg) for major grain legume crops in E-Afr, and (ii) estimate how narrowing the current legume Yg can contribute to food self-sufficiency by the year 2050. We focussed on Ethiopia, Kenya, and Tanzania, and five legumes crops including chickpea, common bean, cowpea, groundnut, and pigeonpea. A bottom-up approach which entails that local weather, soil and agronomic data was used as input for crop modelling (SSM-legumes) in a spatial framework, to estimate Yw, actual on-farm yield (Ya), and Yg from local to regional scale. Future legume self-sufficiency was assessed for 2050 demand assuming different Yg closure scenarios. On average, Ya was 25% of Yw across all legume-county combinations, being 15% for Kenya, 23% for Tanzania and 41% for Ethiopia. On average, common bean had the largest Yg of 2.6 Mg ha−1and chickpea the smallest (1.4 Mg ha−1). Closure of the exploitable Yg (i.e., 80% of Yw) can help to meet future legume demand in both Kenya and Tanzania, while it seems not to be sufficient in Ethiopia.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.bibliographicCitationLoon, M.P. van, Deng, N., Grassini, P., Edreira, J.I.R., Wolde-meskel, E., Baijukya, F., Marrou, H. and Ittersum, M.K. van. 2018. Prospect for increasing grain legume crop production in East Africa. European Journal of Agronomy 101: 140-148en
dcterms.extentp. 140-148en
dcterms.issued2018-11en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherElsevieren
dcterms.subjectlegumesen
dcterms.subjectcropsen
dcterms.subjectgrainen
dcterms.subjectcrop productionen
dcterms.subjectresearchen
dcterms.subjectcowpeasen
dcterms.subjectchickpeasen
dcterms.subjectclimate changeen
dcterms.subjectfood securityen
dcterms.subjectagricultureen
dcterms.typeJournal Article

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