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Agro-ecology, resource endowment and indigenous knowledge interactions modulate soil fertility in mixed farming systems in central and western Ethiopia

dc.contributor.authorAgumas, B.
dc.contributor.authorBalume, I.
dc.contributor.authorMusyoki, M.K.
dc.contributor.authorBenz, M.
dc.contributor.authorNziguheba, G.
dc.contributor.authorMarohn, C.
dc.contributor.authorVanlauwe, B.
dc.contributor.authorCardisch, G.
dc.contributor.authorRasche, F.
dc.date.accessioned2021-03-17T14:07:47Z
dc.date.available2021-03-17T14:07:47Z
dc.date.issued2021
dc.identifier.citationAgumas, B., Balume, I., Musyoki, M.K., Benz, M., Nziguheba, G., Marohn, C., ... & Rasche, F. (2021). Agro‐ecology, resource endowment and indigenous knowledge interactions modulate soil fertility in mixed farming systems in central and western Ethiopia. Soil Use and Management, 1-10.
dc.identifier.issn0266-0032
dc.identifier.urihttps://hdl.handle.net/20.500.12478/7084
dc.description.abstractSite‐specific soil fertility management requires a fundamental understanding of factors that modulate soil fertility variability in the local context. To verify this assumption, this study hypothesized that soil fertility variability across two regions in Central and Western Ethiopia is determined by inter‐related effects of agro‐ecological zones and farmers’ resource endowment (‘wealthy’ versus ‘poor’ farmers). Mid‐infrared spectroscopy coupled to partial least squares regression (midDRIFTS‐PLSR) and wet‐laboratory analyses were used to assess the soil fertility (soil pH, total soil carbon [TC] and nitrogen [TN], plant‐available phosphorous [Pav] and potassium [Kav]) across four agro‐ecological zones: ‘High‐Dega’ (HD), ‘Dega’ (D), ‘Weina‐Dega’ (WD) and ‘Kola’ (K). MidDRIFTS peak area analysis of spectral frequencies (2,930 [aliphatic C‐H], 1,620 [aromatic C = C], 1,159 [C‐O poly‐alcoholic and ether groups] cm‐1) was applied to characterize soil organic carbon (SOC) quality and to calculate the SOC stability index (1,620:2,930). Higher TC in HD, as well as higher TN and Kav contents in K were found in fields of wealthy compared with poor farmers. Resource endowment dependent soil fertility management options revealed SOC of higher quality in wealthy compared with poor farms in D. Agro‐ecological zones distinctions contributed to these soil fertility differences. Farmers distinguished visually fertile and less fertile fields based on soil colour. Higher pH in K and WD as well as Pav in K and HD were found in fertile (brown/black) than less fertile (red) soils. To conclude, tailor‐made soil fertility management in the local context must consider agro‐ecological zones and resource endowment interactions along with farmers’ indigenous knowledge.
dc.description.sponsorshipGerman Federal Ministry for Economic Cooperation and Development
dc.format.extent1-10
dc.language.isoen
dc.subjectAgroecology
dc.subjectIndigenous Knowledge
dc.subjectSoils
dc.subjectSoil Fertility
dc.subjectEthiopia
dc.subjectFarming Systems
dc.titleAgro-ecology, resource endowment and indigenous knowledge interactions modulate soil fertility in mixed farming systems in central and western Ethiopia
dc.typeJournal Article
cg.contributor.crpMaize
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationUniversity of Hohenheim
cg.contributor.affiliationAmhara Regional Agricultural Research Institute
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.coverage.regionAfrica
cg.coverage.regionEast Africa
cg.coverage.countryEthiopia
cg.coverage.hubCentral Africa Hub
cg.researchthemeNatural Resource Management
cg.identifier.bibtexciteidAGUMAS:2021
cg.isijournalISI Journal
cg.authorship.typesCGIAR and developing country institute
cg.iitasubjectAgronomy
cg.iitasubjectFarming Systems
cg.iitasubjectPlant Production
cg.iitasubjectSoil Fertility
cg.journalSoil Use and Management
cg.notesOpen Access Article; Published online: 14 Feb 2021
cg.accessibilitystatusOpen Access
cg.reviewstatusPeer Review
cg.usagerightslicenseCreative Commons Attribution 4.0 (CC BY 0.0)
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.1111/sum.12706
cg.iitaauthor.identifierGenerose Nziguheba: 0000-0003-4227-2242
cg.iitaauthor.identifierbernard vanlauwe: 0000-0001-6016-6027
cg.futureupdate.requiredNo


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