Tropical forage technologies can deliver multiple benefits in Sub-Saharan Africa: A meta-analysis

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cg.authorship.typesCGIAR multi-centreen
cg.contributor.affiliationBioversity International and the International Center for Tropical Agricultureen
cg.contributor.affiliationWageningen University & Researchen
cg.contributor.affiliationInstituto Nacional de Tecnología Agropecuaria, Argentinaen
cg.contributor.affiliationInternational Maize and Wheat Improvement Centeren
cg.contributor.affiliationCentre de Coopération Internationale en Recherche Agronomique Pour le Développementen
cg.contributor.affiliationUniversity of Groningenen
cg.contributor.crpLivestocken
cg.contributor.donorUnited States Agency for International Developmenten
cg.contributor.donorFederal Ministry for Economic Cooperation and Development, Germanyen
cg.contributor.donorDeutsche Gesellschaft für Internationale Zusammenarbeiten
cg.creator.identifierBirthe Paul: 0000-0002-5994-5354en
cg.creator.identifierAn Maria Omer Notenbaert: 0000-0002-6266-2240en
cg.creator.identifierMichael Peters: 0000-0003-4237-3916en
cg.creator.identifierGroot, J.C.J.: 0000-0001-6516-5170en
cg.identifier.doihttps://doi.org/10.1007/s13593-020-00626-3en
cg.isijournalISI Journalen
cg.issn1774-0746en
cg.issue4en
cg.journalAgronomy for Sustainable Developmenten
cg.reviewStatusPeer Reviewen
cg.subject.alliancebiovciatAGRICULTUREen
cg.subject.alliancebiovciatCROP PRODUCTIONen
cg.subject.alliancebiovciatLIVESTOCKen
cg.subject.alliancebiovciatTROPICAL FORAGESen
cg.subject.ilriANIMAL FEEDINGen
cg.subject.ilriFORAGESen
cg.volume40en
dc.contributor.authorPaul, Birthe K.en
dc.contributor.authorKoge, Jessicaen
dc.contributor.authorMaass, Brigitte L.en
dc.contributor.authorNotenbaert, An Maria Omeren
dc.contributor.authorPeters, Michaelen
dc.contributor.authorGroot, Jeroen C.J.en
dc.contributor.authorTittonell, Pablo A.en
dc.date.accessioned2020-07-01T13:36:48Zen
dc.date.available2020-07-01T13:36:48Zen
dc.identifier.urihttps://hdl.handle.net/10568/108642
dc.titleTropical forage technologies can deliver multiple benefits in Sub-Saharan Africa: A meta-analysisen
dcterms.abstractScarcity of quantity and quality feed has been a key constraint to productivity of smallholder crop-livestock systems. Tropical forages include a variety of annual and perennial grasses, herbaceous and dual-purpose legumes, and multipurpose trees and shrubs. They have been promoted in Sub-Saharan Africa (SSA) for increasing livestock productivity and household income through higher quantity and quality of herbage, while contributing to soil improvement and higher food crop yields. For the first time, we quantitatively reviewed 72 experimental studies from across SSA to take stock of geographical distribution and forage technology focus of past research; quantify magnitudes of multidimensional impacts of forage technologies; and present variability in forage agronomy data. Improved forage technologies were classified into four groups: (i) germplasm, (ii) management, (iii) cropping system integration, and (iv) feeding regime. Mean weighted response ratios were calculated from 780 pairs of observations for 13 indicators across the five impact dimensions. Improved forage germplasm had on average 2.6 times higher herbage productivity than local controls, with strongest effect in grasses. Feeding regimes with improved leguminous forages increased milk yield by on average 39%, dry matter intake by 25%, and manure production by 24%. When forage technologies were integrated with food crops, soil loss was almost halved, soil organic carbon increased on average by 10%, and grain and stover yields by 60% and 33%, respectively. This study demonstrates the central role improved forages could play in sustainable intensification of crop-livestock systems in SSA. It highlights the need for multidisciplinary and systems-level approaches and studies to quantify synergies and tradeoffs between impact dimensions. Further research is needed to explain forage agronomic yield variability, unraveling interactions between genotype, on-farm environmental conditions, and management factors. Results from this review can inform development programs, prioritizing technologies proven successful for dissemination and indicating magnitudes of expected impactsen
dcterms.accessRightsOpen Accessen
dcterms.available2020-06-29en
dcterms.bibliographicCitationPaul, B.K.; Koge, J.; Maass, B.L.; Notenbaert, A.; Peters, M.; Groot, J.C.J.; Tittonell, P. (2020) Tropical forage technologies can deliver multiple benefits in Sub-Saharan Africa. A meta-analysis. Agronomy for Sustainable Development 40:22. ISSN: 1774-0746en
dcterms.issued2020-08en
dcterms.languageenen
dcterms.licenseCC-BY-4.0en
dcterms.publisherSpringeren
dcterms.relationhttps://hdl.handle.net/10568/110715en
dcterms.subjectgrassesen
dcterms.subjectgramineasen
dcterms.subjectsoil organic carbonen
dcterms.subjectcarbono organico del sueloen
dcterms.subjectlivestocken
dcterms.subjectganadoen
dcterms.subjectagronomyen
dcterms.subjectagronomiaen
dcterms.subjectcropping systemsen
dcterms.subjectsistemas de cultivoen
dcterms.subjectenvironmental engineeringen
dcterms.typeJournal Articleen

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