Cereal yield response to conservation agriculture practices in drylands of West Africa: A quantitative synthesis

cg.contactj.bayala@cgiar.orgen_US
cg.contributor.centerWorld Agroforestry Center - ICRAFen_US
cg.contributor.centerNorth Carolina State University - NC Stateen_US
cg.contributor.crpCRP on Dryland Systems - DSen_US
cg.contributor.funderNot Applicableen_US
cg.coverage.countryBFen_US
cg.coverage.countryMLen_US
cg.coverage.countryNEen_US
cg.coverage.countrySNen_US
cg.coverage.regionWestern Africaen_US
cg.creator.idBayala, Jules: 0000-0002-8579-1248en_US
cg.creator.idCoe, Richard: 0000-0002-9240-1463en_US
cg.date.embargo-end-date2016-11-30en_US
cg.identifier.doihttps://dx.doi.org/10.1016/j.jaridenv.2011.10.011en_US
cg.isijournalISI journalen_US
cg.issn0140-1963en_US
cg.journalJournal of Arid Environmentsen_US
cg.subject.agrovoccrop productionen_US
cg.subject.agrovoccover cropsen_US
cg.volume78en_US
dc.contributorSileshi, Gudeta W.en_US
dc.contributorCoe, Richarden_US
dc.contributorKalinganire, Antoineen_US
dc.contributorTchoundjeu, Zacharieen_US
dc.contributorSinclair, Thomas R.en_US
dc.contributorGarrity, Dennisen_US
dc.creatorBayala, Julesen_US
dc.date.accessioned2017-01-05T19:39:23Z
dc.date.available2017-01-05T19:39:23Z
dc.description.abstractTo address the decline in crop productivity in the drylands ofWest Africa, many initiatives have focused on combating soil degradation. Various practices including (1) parkland trees associated with crops, (2) coppicing trees, (3) green manure, (4) mulching, (5) crop rotation and intercropping, and (6) traditional soil/water conservation have been tested. The present study attempts to provide a comprehensive, quantitative synthesis of existing reports on the effect of conservation agriculture (CA) practices on crop yield response in Burkina Faso, Mali, Niger and Senegal. Out of a total of 155 reports found, 63 fulfilled all the appropriate criteria to be included in the meta-analysis of the effect of various conservation agriculture practices on the yield response of maize, millet and sorghum. The study revealed significant variability in cereal yield response (and hence risk) with all the practices examined. Despite the variability, the mean effects of the six CA practices on crop yield were more positive than negative except with parkland trees. However, for this last practice, species like Faidherbia albida exerts more positive impact on crop yield. Yield increases relative to the control were higher with green manure and mulching than with coppicing trees and parklands. Increases in yield in the six CA practices were higher on low to medium productivity sites for maize, millet and sorghum. Coppicing trees and rotations improved yields when the rainfall is >800mmwhereas the opposite happens with parkland and soilewater conservation measures. Mulching performed better when the rainfall is <600 mm. The variability (and hence yield risks) calls for more understanding of the processes and application of appropriate tree management to reduce crop yield losses while still providing products (fruits, leaves, wood, etc.) and services (soil carbon building up) for long-term sustainability of the production systems in drylands of West Africa.en_US
dc.formatPDFen_US
dc.identifierhttps://mel.cgiar.org/reporting/downloadmelspace/hash/uk45nClg/v/f33fd1d103745a80262407b2bd84927een_US
dc.identifier.citationJules Bayala, Gudeta W. Sileshi, Richard Coe, Antoine Kalinganire, Zacharie Tchoundjeu, Thomas R. Sinclair, Dennis Garrity. (30/11/2012). Cereal yield response to conservation agriculture practices in drylands of West Africa: A quantitative synthesis. Journal of Arid Environments, 78, pp. 13-25.en_US
dc.identifier.statusLimited accessen_US
dc.identifier.urihttps://hdl.handle.net/20.500.11766/5159
dc.languageenen_US
dc.publisherElsevieren_US
dc.rightsCC-BY-NC-4.0en_US
dc.sourceJournal of Arid Environments;78,(2012) Pagination 13,25en_US
dc.subjectcoppicing treesen_US
dc.subjectmean difference in yielden_US
dc.subjectparklandsen_US
dc.subjectsoil and water conservationen_US
dc.titleCereal yield response to conservation agriculture practices in drylands of West Africa: A quantitative synthesisen_US
dc.typeJournal Articleen_US
dcterms.available2012-11-30en_US
dcterms.extent13-25en_US
mel.impact-factor1.623en_US

Files