Does the combined application of organic and mineral nutrient sources influence maize productivity? A meta-analysis

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dc.contributor.authorChivenge, P. P.en
dc.contributor.authorVanlauwe, Bernarden
dc.contributor.authorSix, J.en
dc.contributor.departmentSustainable Agriculture and Natural Resource Management (SANREM) Knowledgebaseen
dc.coverage.spatialBeninen
dc.coverage.spatialBurkina Fasoen
dc.coverage.spatialCote d'Ivoireen
dc.coverage.spatialEthiopiaen
dc.coverage.spatialGhanaen
dc.coverage.spatialKenyaen
dc.coverage.spatialMalawien
dc.coverage.spatialNigeriaen
dc.coverage.spatialTanzaniaen
dc.coverage.spatialTogoen
dc.coverage.spatialZambiaen
dc.coverage.spatialZimbabween
dc.coverage.temporal1994 - 2009en
dc.date.accessioned2016-04-19T20:08:26Zen
dc.date.available2016-04-19T20:08:26Zen
dc.date.issued2011en
dc.descriptionMetadata only recorden
dc.description.abstractIn Sub-Saharan Africa, soil quality declines as population pressures and low yields push the intensity of agricultural production upward. This meta-analysis offers a valuable insight on which external-input sources will have the most impact on Sub-Saharan African maize yields, nitrogen use efficiency, and soil organic carbon (SOC). Fifty-seven studies comprising 104 experimental sites in twelve countries (Benin, Burkina Faso, Cote d'Ivoire, Ethiopia, Ghana, Kenya, Malawi, Nigeria, Tanzania, Togo, Zambia, and Zimbabwe) were grouped according to the application of Organic Resources (OR), nitrogen fertilizers, and OR and N fertilizers. OR quality was further divided into four classes of decreasing qualities. Maize yields increased with increasing OR quality, both with and without N fertilizer application. Greater yield responses were seen with OR and N fertilizer application, however there is no evidence to suggest this was due to improved N use efficiency, as N use efficiency after combined applications was lower compared to N fertilizer application alone. SOC increase was observed in OR and OR and N fertilizer application, but not in N fertilizer application alone. These results suggest that nutrient storage increases with application of higher quality ORs and low levels of N may be added in conjunction with OR to achieve higher yield responses, but not to increase N use efficiency.en
dc.format.mimetypetext/plainen
dc.identifier4854en
dc.identifier.citationPlant and Soil 342(1-2): 1-30en
dc.identifier.doihttps://doi.org/10.1007/s11104-010-0626-5en
dc.identifier.issn0032-079Xen
dc.identifier.urihttp://hdl.handle.net/10919/69084en
dc.language.isoen_USen
dc.publisherSpringer Netherlandsen
dc.rightsIn Copyrighten
dc.rights.holderCopyright The Author(s) 2010. This article is published with open access at Springerlink.comen
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectSoil nutrientsen
dc.subjectSoil degradationen
dc.subjectSoil managementen
dc.subjectSoil conservationen
dc.subjectSoil fertilityen
dc.subjectSoil qualityen
dc.subjectSoilen
dc.subjectSoil organic matteren
dc.subjectFertilizationen
dc.subjectOrganic resource qualityen
dc.subjectInteractive effectsen
dc.subjectIntegrated soil fertility managementen
dc.subjectYield responseen
dc.subjectZea maizeen
dc.subjectSub-Saharan Africaen
dc.subjectAgronomic n use efficiencyen
dc.subjectMeta-analysisen
dc.subjectField Scaleen
dc.titleDoes the combined application of organic and mineral nutrient sources influence maize productivity? A meta-analysisen
dc.typeAbstracten
dc.type.dcmitypeTexten

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