Soil bacterial community is influenced by long‐term integrated soil fertility management practices in a ferralsol in Western Kenya

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cg.authorship.typesCGIAR and advanced research instituteen
cg.contributor.affiliationInternational Center for Tropical Agricultureen
cg.contributor.affiliationKenyatta Universityen
cg.contributor.donorDeutsche Gesellschaft für Internationale Zusammenarbeiten
cg.contributor.donorCGIAR Trust Funden
cg.contributor.initiativeExcellence in Agronomy
cg.contributor.initiativeAgroecology
cg.coverage.countryKenya
cg.coverage.iso3166-alpha2KE
cg.coverage.regionAfrica
cg.coverage.regionEastern Africa
cg.coverage.regionSub-Saharan Africa
cg.creator.identifierPeter BOLO: 0000-0002-4202-7557
cg.creator.identifierRomano Mwirichia: 0000-0002-4198-5593
cg.creator.identifierMichael Kinyua: 0000-0001-6106-3599
cg.creator.identifierJob Kihara: 0000-0002-4394-9553
cg.identifier.doihttps://doi.org/10.1002/sae2.12090en
cg.isijournalISI Journalen
cg.issn2767-035Xen
cg.issue1en
cg.journalJournal of Sustainable Agriculture and Environmenten
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.alliancebiovciatAGRICULTUREen
cg.subject.alliancebiovciatAGROFORESTRYen
cg.subject.alliancebiovciatBIODIVERSITYen
cg.subject.alliancebiovciatFARMING SYSTEMSen
cg.subject.alliancebiovciatSOIL HEALTHen
cg.subject.impactAreaEnvironmental health and biodiversity
cg.subject.sdgSDG 2 - Zero hungeren
cg.volume3en
dc.contributor.authorBolo, Peteren
dc.contributor.authorMucheru-Muna, Monicahen
dc.contributor.authorMwirichia, Romano K.en
dc.contributor.authorKinyua, Michaelen
dc.contributor.authorAyaga, Georgeen
dc.contributor.authorKihara, Job Magutaen
dc.date.accessioned2024-02-27T12:19:55Zen
dc.date.available2024-02-27T12:19:55Zen
dc.identifier.urihttps://hdl.handle.net/10568/139686
dc.titleSoil bacterial community is influenced by long‐term integrated soil fertility management practices in a ferralsol in Western Kenyaen
dcterms.abstractIntroduction soil bacterial community structure, abundance and diversity, important in biogeochemical cycling, are influenced by several anthropogenic and edaphic factors. Numerous agronomic practices have been promoted to improve soil fertility and crop production in western Kenya, but little is known on their impacts on soil microbial diversity in the region. Materials and Methods In this study, conducted in 2019, we assessed the influence of various long‐term (17 years) agronomic management practices, involving application of farmyard manure (FYM) either sole or under different combinations with inorganic nitrogen (N), phosphorus (P) and potassium (K), using 12 treatments, on bacterial community composition, relative abundance and diversity. The bacterial community composition was assessed through amplicon sequencing on an Illumina Miseq platform conducted in MR DNA Laboratory, USA. Results The soil bacterial community composition and diversity were predominantly higher under management practices with application of FYM, either sole or in combination with inorganic fertilisers compared to treatments with either sole NPK fertiliser or no input application. Certain bacterial taxa, involving Proteobacteria, Bacteroidetes, Nitrospirae, Fusobacteria, Nitrospinae and Actinobacteria predominated in management practices where FYM was added either solely or in combination with chemical fertilisers. In addition, several soil chemical parameters showed significant influences on bacterial composition, relative abundance and diversity indices. Soil pH, soil organic carbon (SOC), N, K, Ca, Mg, Cu, Zn, Fe and cation exchange capacity consistently showed strong positive correlation with numerous bacterial phyla. Bacterial phyla were significantly affected by treatments. Some bacterial phyla, like Chloroflexi and Acidobacteria , were mostly dominant in treatments applied with organic inputs but were depressed under carbon‐deficient treatments (no‐input control and sole NPK application treatments). Conclusion This study revealed that long‐term agricultural management practices that seek to improve SOC content and nutrient availability also stimulated bacterial diversity and shifted bacterial composition.en
dcterms.accessRightsOpen Access
dcterms.available2024-01-17
dcterms.bibliographicCitationBolo, P.; Mucheru-Muna, M.; Mwirichia, R.K.; Kinyua, M.; Ayaga, G.; Kihara, J. (2024) Soil bacterial community is influenced by long‐term integrated soil fertility management practices in a ferralsol in Western Kenya. Journal of Sustainable Agriculture and Environment 3(1):e12090. ISSN: 2767-035Xen
dcterms.issued2024-01-17
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherWileyen
dcterms.subjectbacteriaen
dcterms.subjectfertilizationen
dcterms.subjectmanureen
dcterms.typeJournal Article

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