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dc.contributor.author
Heller, Olivier
dc.contributor.author
Kiba, Delwendé I.
dc.contributor.author
Zida, Kalifa Wend-Doléa
dc.contributor.author
Schneider, Kim
dc.contributor.author
Kouame, Hgazat Kouassi Valérie
dc.contributor.author
Traoré, Ouakoltio Y.A.
dc.contributor.author
Siegrist, Michael
dc.contributor.author
Frossard, Emmanuel
dc.date.accessioned
2022-05-16T17:04:49Z
dc.date.available
2022-05-16T07:35:50Z
dc.date.available
2022-05-16T17:04:49Z
dc.date.issued
2022-04-13
dc.identifier.issn
2673-3218
dc.identifier.other
10.3389/fagro.2022.828305
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/547297
dc.identifier.doi
10.3929/ethz-b-000547297
dc.description.abstract
Yam (Discorea spp.) is a staple food crop in Africa that requires fertile soils and an annual rainfall of about 1,500 mm. However, in the semi-arid North-West of Burkina Faso, farmers produce yam in continuous rotation on degraded soils with annual rainfall of 610–960 mm. Understanding this local know-how can help improve yam cultivation in other regions and cropping systems in Africa. This study evaluated the productivity of this yam farming system in an interdisciplinary manner involving agronomic and economic analyses. We studied the cropping practices and socio-economic conditions of 67 households in 12 villages. We questioned farmers about their yam management schedule and inputs and we measured the yam fresh tuber yields in their fields. We sampled soils, manure and yam tubers for chemical analyses. Then, we calculated soil surface nutrient balances for N, P, and K. We found that the cropping system was characterized by densely planted ridges and relatively small size of harvested tubers. The farmers coped with degrading soils and increasing market demand by applying in average 16.2 t ha−1 of manure. About 31% of the farmers applied an average of 435 kg ha−1 of NPK fertilizer and another 24% applied an average of 300 kg ha−1 of urea. The average yam yield was 16.2 t ha−1, well above the West African average yield of 10.7 t ha−1.The yam had high value (0.59 USD kg−1) at relatively low production expenditure (0.04 USD kg−1), providing farmers the opportunity to increase and diversify incomes. Our results suggest that the development of this intensified yam production may be limited by farmer's low purchasing power of yam seed tubers, fertilizers and labor.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Frontiers Media
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
yam cropping system
en_US
dc.subject
climate adaptation
en_US
dc.subject
soil organic matter depletion
en_US
dc.subject
manure application
en_US
dc.subject
soil degradation
en_US
dc.subject
nutrient balance
en_US
dc.subject
West Africa
en_US
dc.title
Interdisciplinary Assessment of Market Oriented Yam Cultivation in Semi-arid Burkina Faso
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
ethz.journal.title
Frontiers in Agronomy
ethz.journal.volume
4
en_US
ethz.journal.abbreviated
Front. Agron.
ethz.pages.start
828305
en_US
ethz.size
13 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS)
en_US
ethz.identifier.scopus
ethz.publication.place
Lausanne
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::03780 - Siegrist, Michael / Siegrist, Michael
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03427 - Frossard, Emmanuel / Frossard, Emmanuel
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02070 - Dep. Gesundheitswiss. und Technologie / Dep. of Health Sciences and Technology::03780 - Siegrist, Michael / Siegrist, Michael
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02350 - Dep. Umweltsystemwissenschaften / Dep. of Environmental Systems Science::02703 - Institut für Agrarwissenschaften / Institute of Agricultural Sciences::03427 - Frossard, Emmanuel / Frossard, Emmanuel
ethz.grant.agreementno
177584
ethz.grant.fundername
SNF
ethz.grant.funderDoi
10.13039/501100001711
ethz.grant.program
r4d - Food Security Fortsetzung
ethz.date.deposited
2022-05-16T07:35:54Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2022-05-16T17:04:59Z
ethz.rosetta.lastUpdated
2023-02-07T02:47:45Z
ethz.rosetta.versionExported
true
ethz.COinS
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