Profitability of Gliricidia-maize system in selected dryland areas of Dodoma Region, Tanzania

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cg.authorship.typesCGIAR and developing country instituteen
cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationSokoine University of Agricultureen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.affiliationUniversity of Dodomaen
cg.contributor.affiliationRoskilde Universityen
cg.contributor.affiliationCommonwealth Scientific and Industrial Research Organisation, Australiaen
cg.contributor.affiliationLeibniz Centre for Agricultural Landscape Research, Germanyen
cg.contributor.affiliationHumboldt Universitat zu Berlinen
cg.contributor.affiliationWorld Agroforestry Centreen
cg.contributor.donorUnited States Agency for International Developmenten
cg.contributor.donorUnited States Department of Agricultureen
cg.contributor.donorAustralian Centre for International Agricultural Researchen
cg.coverage.countryTanzania
cg.coverage.iso3166-alpha2TZ
cg.coverage.regionAfrica
cg.coverage.regionSub-Saharan Africa
cg.coverage.regionEastern Africa
cg.coverage.regionSouthern Africa
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.3390/su14010053en
cg.identifier.iitathemeNATURAL RESOURCE MANAGEMENT
cg.isijournalISI Journalen
cg.issn2071-1050en
cg.issue1en
cg.journalSustainabilityen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.iitaAGRONOMYen
cg.subject.ilriCLIMATE CHANGEen
cg.subject.ilriCROPSen
cg.subject.ilriFARMING SYSTEMSen
cg.subject.ilriINTENSIFICATIONen
cg.subject.ilriSOILSen
cg.subject.impactAreaClimate adaptation and mitigation
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 1 - No povertyen
cg.subject.sdgSDG 2 - Zero hungeren
cg.subject.sdgSDG 11 - Sustainable cities and communitiesen
cg.subject.sdgSDG 13 - Climate actionen
cg.volume14en
dc.contributor.authorSwamila, M.en
dc.contributor.authorPhilip, D.en
dc.contributor.authorAkyoo, M.en
dc.contributor.authorManda, J.en
dc.contributor.authorMwinuka, L.en
dc.contributor.authorSmethurst, P.en
dc.contributor.authorSieber, S.en
dc.contributor.authorKimaro, Anthony A.en
dc.date.accessioned2022-01-12T10:06:24Zen
dc.date.available2022-01-12T10:06:24Zen
dc.identifier.urihttps://hdl.handle.net/10568/117464
dc.titleProfitability of Gliricidia-maize system in selected dryland areas of Dodoma Region, Tanzaniaen
dcterms.abstractDeclining soil fertility and climatic extremes are among major problems for agricultural production in most dryland agro-ecologies of sub-Saharan Africa. In response, the agroforestry technology intercropping of Gliricidia (Gliricidia sepium (Jacq.)) and Maize (Zea mays L.) was developed to complement conventional soil fertility management technologies. However, diversified information on the profitability of Gliricidia-Maize intercropping system in dryland areas is scanty. Using data from the Gliricidia and maize models of the Next Generation version of the Agriculture Production Systems sIMulator (APSIM), this study estimates the profitability of the Gliricidia-Maize system relative to an unfertilized sole maize system. Results show significant heterogeneity in profitability indicators both in absolute and relative economic terms. Aggregated over a 20-year cycle, Gliricidia-Maize intercropping exhibited a higher Net Present Value (NPV = Tsh 19,238,798.43) and Benefit Cost Ratio (BCR = 4.27) than the unfertilized sole maize system. The NPV and BCR of the latter were Tsh 10,934,669.90 and 3.59, respectively. Moreover, the returns to labour per person day in the Gliricidia-Maize system was 1.5 times those of the unfertilized sole maize system. Sensitivity analysis revealed that the profitability of the Gliricidia-Maize system is more negatively affected by the decrease in output prices than the increase in input prices. A 30% decrease in the former leads to a decrease in NPV and BCR by 38% and 30%, respectively. Despite the higher initial costs of the agroforestry establishment, the 30% increase in input prices affects more disproportionally unfertilized sole maize than the Gliricidia-Maize system in absolute economic terms, i.e., 11.1% versus 8.8% decrease in NPV. In relative economic terms, an equal magnitude of change in input prices exerts the same effect on the unfertilized sole maize and the Gliricidia-maize systems. This result implies that the monetary benefits accrued after the first year of agroforestry establishment offset the initial investment costs. The Gliricidia-Maize intercropping technology therefore is profitable with time, and it can contribute to increased household income and food security. Helping farmers to overcome initial investment costs and manage agroforestry technologies well to generate additional benefits is critical for the successful scaling of the Gliricidia-Maize intercropping technology in dryland areas of Dodoma, Tanzania.en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.available2021-12-21
dcterms.bibliographicCitationSwamila, M., Philip, D., Akyoo, M., Manda, J., Mwinuka, L., Smethurst, P., Sieber, S. and Kimaro, A. 2022. Profitability of Gliricidia-maize system in selected dryland areas of Dodoma Region, Tanzania. Sustainability 14:53.en
dcterms.issued2022-01-01
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherMDPIen
dcterms.subjectsoil fertilityen
dcterms.subjectprofitabilityen
dcterms.subjectgliricidiaen
dcterms.subjectdrylandsen
dcterms.subjectmaizeen
dcterms.typeJournal Article

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