Micronutrient deficiencies in African soils and the human nutritional nexus: opportunities with staple crops

Simple item page
cg.contributor.affiliationBioversity International and the International Center for Tropical Agricultureen
cg.contributor.affiliationInternational Plant Nutrition Instituteen
cg.contributor.donorSwedish International Development Cooperation Agencyen
cg.coverage.regionAfrica
cg.creator.identifierJob Kihara: 0000-0002-4394-9553en
cg.creator.identifierPeter BOLO: 0000-0002-4202-7557en
cg.identifier.doihttps://doi.org/10.1007/s10653-019-00499-wen
cg.isijournalISI Journalen
cg.issn0269-4042en
cg.issue9en
cg.journalEnvironmental Geochemistry and Healthen
cg.reviewStatusPeer Reviewen
cg.volume42en
dc.contributor.authorKihara, Job Magutaen
dc.contributor.authorBolo, Peter Omondien
dc.contributor.authorKinyua, Michaelen
dc.contributor.authorRurinda, Jairosen
dc.contributor.authorPiikki, Kristinen
dc.date.accessioned2020-01-29T14:35:14Zen
dc.date.available2020-01-29T14:35:14Zen
dc.identifier.urihttps://hdl.handle.net/10568/106799
dc.titleMicronutrient deficiencies in African soils and the human nutritional nexus: opportunities with staple cropsen
dcterms.abstractA synthesis of available agronomic datasets and peer-reviewed scientific literature was conducted to: (1) assess the status of micronutrients in sub-Saharan Africa (SSA) arable soils, (2) improve the understanding of the relations between soil quality/management and crop nutritional quality and (3) evaluate the potential profitability of application of secondary and micronutrients to key food crops in SSA, namely maize (Zea mays L.), beans (Phaseolus spp. and Vicia faba L.), wheat (Triticum aestivum L.) and rice (Oryza sativa L.). We found that there is evidence of widespread but varying micronutrient deficiencies in SSA arable soils and that simultaneous deficiencies of multiple elements (co-occurrence) are prevalent. Zinc (Zn) predominates the list of micronutrients that are deficient in SSA arable soils. Boron (B), iron (Fe), molybdenum (Mo) and copper (Cu) deficiencies are also common. Micronutrient fertilization/agronomic biofortification increases micronutrient concentrations in edible plant organs, and it was profitable to apply fertilizers containing micronutrient elements in 60–80% of the cases. However, both the plant nutritional quality and profit had large variations. Possible causes of this variation may be differences in crop species and cultivars, fertilizer type and application methods, climate and initial soil conditions, and soil chemistry effects on nutrient availability for crop uptake. Therefore, micronutrient use efficiency can be improved by adapting the rates and types of fertilizers to site-specific soil and management conditions. To make region-wide nutritional changes using agronomic biofortification, major policy interventions are needed.en
dcterms.accessRightsOpen Access
dcterms.available2020-01-04en
dcterms.bibliographicCitationKihara, J.; Bolo, P.; Kinyua, M.; Rurinda, J.; Piikki, K. (2020) Micronutrient deficiencies in African soils and the human nutritional nexus: opportunities with staple crops. Environmental Geochemistry and Health 19 p. ISSN: 0269-4042en
dcterms.extentp. 3015-3033en
dcterms.issued2020-09en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherSpringeren
dcterms.subjecttrace elementsen
dcterms.subjectfertilizationen
dcterms.subjecthuman nutritionen
dcterms.subjectsoil fertilityen
dcterms.subjectprofitabilityen
dcterms.subjectoligoelementosen
dcterms.subjectfecundacionen
dcterms.subjectnutricion humanaen
dcterms.typeJournal Article

Files

Original bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
Kihara2020_Article_MicronutrientDeficienciesInAfr.pdf
Size:
1.62 MB
Format:
Adobe Portable Document Format
Description:
Download

License bundle

Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
1.75 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

CIAT Articles in Journals
Alliance Bioversity CIAT Journal Articles
Alliance Research Lever 2: Multifunctional Landscapes
CIAT Agroecosystems and Sustainable Landscapes (ASL)