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Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS)

English title Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS)
Applicant Frossard Emmanuel
Number 152017
Funding scheme r4d (Swiss Programme for Research on Global Issues for Development)
Research institution Pflanzenernährung Institut für Agrarwissenschaften ETH Zürich
Institution of higher education ETH Zurich - ETHZ
Main discipline Pedology
Start/End 01.12.2014 - 30.11.2017
Approved amount 1'715'089.00
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Keywords (5)

options; soil-management; value-chain; innovation-platform; yam

Lay Summary (French)

Lead
L’igname est une culture essentielle pour la sécurité alimentaire en Afrique de l’Ouest. Le projet YAMSYS vise à développer des méthodes de gestion du sol qui vont permettre de stabiliser la culture de l’igname dans des rotations tout en augmentant les rendements et les revenus des acteurs le long de la chaine de valeur de l’igname. C’est un projet à la fois interdisciplinaire faisant intervenir des spécialistes du sol, de l’agronomie, de l’économie et de la sociologie et transdisciplinaire puisque les objectifs de la recherche seront fixés en collaboration avec les stakeholders. Ce projet est conduit en partenariat entre des universités et des institutions de recherche de Suisse, de Côte d’Ivoire, du Burkina Faso et du système international de recherche agronomique.
Lay summary

L’igname (Dioscorea sp) est une plante à tubercule essentielle pour la sécurité alimentaire des populations d’Afrique de l’Ouest. C’est aussi une source importante de revenu pour les producteurs, commerçants, et transformateurs. Traditionnellement l’igname est cultivée juste après une défriche de jachère de longue durée ou de végétation naturelle. Les rendements en tubercules restent cependant faibles et les effets négatifs sur l’environnement importants. Au vu de la pauvreté, de l’insécurité alimentaire, et de la dégradation de l’environnement qui règnent dans cette région, il est urgent de développer des mesures visant à améliorer la situation. Malheureusement très peu de recherches ont été conduites sur cette culture. YAMSYS vise à développer des méthodes de gestion du sol qui vont permettre de stabiliser la culture dans des rotations tout en augmentant les rendements et les revenus des acteurs le long de la chaine de valeur de l’igname. Pour atteindre ce but il faut conduire des études agronomiques testant l’effet de différentes pratiques de gestion du sol, et des études socio-économiques et institutionnelles pour comprendre les déterminants de l’utilisation des sols et le rôle de cette culture. L’aspect transdisciplinaire de la recherche est assuré par la mise en place de plateformes d’innovation qui vont impliquer les stakeholders et permettre de développer un dialogue, qui aboutira à la proposition et à la validation d’innovations qui pourront être mise en œuvre de façon durable et efficiente dans la région. Ce projet est conduit en partenariat entre des universités et des institutions de recherche de Suisse (ETH Zurich, FiBL), de Côte d’Ivoire (CSRS, Université Houphouët-Boigny), du Burkina Faso (INERA, Université de Bobo Dioulasso) et du CGIAR (ICRAF et IITA). La recherche sera conduite sur 2 sites en Côte d’Ivoire et 2 sites au Burkina Faso, représentatifs des conditions pédoclimatiques et socio-économiques de la ceinture de l’igname d’Afrique de l’Ouest.

Direct link to Lay Summary Last update: 30.10.2014

Responsible applicant and co-applicants

Employees

Collaboration

Group / person Country
Types of collaboration
INPHB Ivory Coast (Africa)
- in-depth/constructive exchanges on approaches, methods or results
- Research Infrastructure
Université Abomey-Calavi Benin (Africa)
- in-depth/constructive exchanges on approaches, methods or results
- Industry/business/other use-inspired collaboration
ICRAF-Nairobi Kenya (Africa)
- in-depth/constructive exchanges on approaches, methods or results
- Research Infrastructure
MARS incorporated United States of America (North America)
- in-depth/constructive exchanges on approaches, methods or results
- Industry/business/other use-inspired collaboration
Africa Yam Nigeria (Africa)
- in-depth/constructive exchanges on approaches, methods or results
ETH Crop science Switzerland (Europe)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Exchange of personnel
Yam project (SUPER KUU) in Guinea/ NGO Salva Terra France (Europe)
- Industry/business/other use-inspired collaboration
INRA/CIRAD Guadeloupe (South America)
- in-depth/constructive exchanges on approaches, methods or results
- Publication
- Exchange of personnel
FIRCA Ivory Coast (Africa)
- Industry/business/other use-inspired collaboration
PAPSA Burkina Faso (Africa)
- Industry/business/other use-inspired collaboration
Roots and tubers program of the FAO Ghana (Africa)
- Industry/business/other use-inspired collaboration
Field Crops Research and Development, Sri Lanka Sri Lanka (Asia)
- Publication
- Industry/business/other use-inspired collaboration

Scientific events

Active participation

Title Type of contribution Title of article or contribution Date Place Persons involved
Conference of the Departement Umweltsystemwissenschaften, ETHZ Talk given at a conference Improving Soil Fertility in Yam Cropping Systems in West Africa: The Role of Innovation Platforms 06.06.2017 Davos, Switzerland Frossard Emmanuel;
NADEL, Food security Talk given at a conference Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS) 05.05.2017 Zurich, Switzerland Frossard Emmanuel;
Meeting with the project PAPSA of the Ministry of Agriculture of Burkina Faso Individual talk Plateforme d’Innovation sur l’igname dans la Sissili au Burkina Faso 02.05.2017 Ouagadougou, Burkina Faso Kiba Delwendé Innocent;
Meeting of the Swiss Forum for International Agricultural Research (SFIAR) Talk given at a conference Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS) 20.04.2017 Dübendorf, Switzerland Frossard Emmanuel;
13th International Symposium of the International Society for Tropical Root Crops Talk given at a conference The performance of Innovation Platforms in sustainable soil management of yam systems in West Africa 05.03.2017 Dar-es Salam, Tanzania Kiba Delwendé Innocent;
National yam day in Léo Talk given at a conference Filière tubercule pour un développement durable dans la Sissili 24.02.2017 Léo, Burkina Faso Kiba Delwendé Innocent;
Annual meeting YAMSYS 2017 Poster Study of ex ante potential adoption of integrated soil fertility management technologies in yam production systems in West Africa 29.01.2017 Soubré, Ivory Coast Aké Séverin; Nicolay Gian Linard; Aighewi Beatrice; Six Johan; Daouda Dao; Bernet Thomas; Kiba Delwendé Innocent; Frossard Emmanuel; Diby Lucien N; Nacro Hassan Bismarck;
Annual meeting of YAMSYS 2017 Poster Effect of land preparation, fertilization and seed emergence date on growth and yield of yam (Dioscorea alata cv. Florido) in west-centre (Leo) and south-west (Midebdo) of Burkina Faso 29.01.2017 Soubré, Ivory Coast Kiba Delwendé Innocent; Diby Lucien N; Nicolay Gian Linard; Aké Séverin; Aighewi Beatrice; Bernet Thomas; Frossard Emmanuel; Nacro Hassan Bismarck; Daouda Dao;
Annual meeting YAMSYS 2017 Poster Growth and yield of yam (Dioscoreaspp.) underintegrated soil fertility management in four agro-ecologic sites of west African yam belt 29.01.2017 Soubré, Ivory Coast Aké Séverin; Nicolay Gian Linard; Bernet Thomas; Aighewi Beatrice; Frossard Emmanuel; Nacro Hassan Bismarck; Diby Lucien N; Kiba Delwendé Innocent; Daouda Dao;
Annual meeting YAMSYS 2017 Poster Land use in yam systems and production practices in West Africa 29.01.2017 Soubré, Ivory Coast Aighewi Beatrice; Aké Séverin; Bernet Thomas; Nacro Hassan Bismarck; Nicolay Gian Linard; Kiba Delwendé Innocent; Daouda Dao; Diby Lucien N; Frossard Emmanuel;
Annual meeting YAMSYS 2017 Poster Soil carbon, nitrogen and phosphorus dynamics under integrated soil fertility management options for improved yam (Dioscorea alata) yields in West Africa 29.01.2017 Soubré, Ivory Coast Daouda Dao; Nacro Hassan Bismarck; Bernet Thomas; Diby Lucien N; Aké Séverin; Kiba Delwendé Innocent; Nicolay Gian Linard; Aighewi Beatrice; Frossard Emmanuel;
Annual meeting YAMSYS 2017 Poster Sociological analysis of the yam-based systems in Ivory Coast and Burkina Faso : stakeholders in the value chains and potentials for sustainable soil fertility management 29.01.2017 Soubré, Ivory Coast Kiba Delwendé Innocent; Bernet Thomas; Diby Lucien N; Frossard Emmanuel; Daouda Dao; Nacro Hassan Bismarck; Nicolay Gian Linard; Aké Séverin; Aighewi Beatrice;
Site visit of YAMSYS Poster Development of a digital method to assess young yam growth and nitrogen status 16.10.2016 Bouaké, Ivory Coast Aighewi Beatrice; Bernet Thomas; Nicolay Gian Linard; Daouda Dao; Kiba Delwendé Innocent; Aké Séverin; Frossard Emmanuel; Diby Lucien N; Nacro Hassan Bismarck;
Site visit of YAMSYS Individual talk Land degradation in yam (Dioscorea sp.) systems along a climatic gradient in West Africa 16.10.2016 Bouaké, Ivory Coast Aighewi Beatrice; Nacro Hassan Bismarck; Frossard Emmanuel; Daouda Dao; Aké Séverin; Nicolay Gian Linard; Kiba Delwendé Innocent; Bernet Thomas; Diby Lucien N;
Site visit of YAMSYS Individual talk Sociological analysis of the yam-based production systems in Burkina-Faso: stakeholders in the value chains and potentials for sustainable soil fertility management 16.10.2016 Bouaké, Ivory Coast Kiba Delwendé Innocent; Aighewi Beatrice; Diby Lucien N; Nacro Hassan Bismarck; Frossard Emmanuel; Aké Séverin; Daouda Dao; Nicolay Gian Linard; Bernet Thomas;
Site visit of YAMSYS Poster Production and distribution strategies of healthy seeds for improving yam (Dioscorea spp) productivity 16.10.2016 Bouaké, Ivory Coast Daouda Dao; Nacro Hassan Bismarck; Aighewi Beatrice; Diby Lucien N; Kiba Delwendé Innocent; Bernet Thomas; Nicolay Gian Linard; Frossard Emmanuel; Aké Séverin;
Site visit of YAMSYS Poster Sustainable yam production in the North of Côte d’Ivoire: YAMSYS site of Tieningboué 16.10.2016 Bouaké, Ivory Coast Aighewi Beatrice; Diby Lucien N; Frossard Emmanuel; Nicolay Gian Linard; Daouda Dao; Kiba Delwendé Innocent; Bernet Thomas; Aké Séverin; Nacro Hassan Bismarck;
Site visit of YAMSYS Poster Sustainable yam production in the South-West of Côte d’Ivoire: YAMSYS site of Liliyo 16.10.2016 Bouaké, Ivory Coast Nicolay Gian Linard; Daouda Dao; Kiba Delwendé Innocent; Bernet Thomas; Aighewi Beatrice; Diby Lucien N; Nacro Hassan Bismarck; Aké Séverin; Frossard Emmanuel;
Site visit of YAMSYS Poster Sustainable yam production in the South of Burkina Faso: YAMSYS site of Léo 16.10.2016 Bouaké, Ivory Coast Aké Séverin; Aighewi Beatrice; Nacro Hassan Bismarck; Frossard Emmanuel; Bernet Thomas; Nicolay Gian Linard; Daouda Dao; Kiba Delwendé Innocent; Diby Lucien N;
Site visit of YAMSYS Poster Soil fertility management for sustainable yam production (Dioscorea spp) in West Africa 16.10.2016 Bouaké, Ivory Coast Bernet Thomas; Daouda Dao; Diby Lucien N; Aké Séverin; Kiba Delwendé Innocent; Aighewi Beatrice; Nicolay Gian Linard; Frossard Emmanuel; Nacro Hassan Bismarck;
Site visit of YAMSYS Individual talk Biophysical, institutional and economic drivers of sustainable soil use in Yam system for improved food security in West Africa 16.10.2016 Bouaké, Ivory Coast Frossard Emmanuel; Aké Séverin; Nicolay Gian Linard; Kiba Delwendé Innocent; Daouda Dao; Bernet Thomas; Diby Lucien N; Nacro Hassan Bismarck; Aighewi Beatrice;
Site visit of YAMSYS Individual talk Yam (Dioscorea spp.) growth and production study under integrated soil fertility management 16.10.2016 Bouaké, Ivory Coast Kiba Delwendé Innocent; Diby Lucien N; Frossard Emmanuel; Bernet Thomas; Nacro Hassan Bismarck; Aighewi Beatrice; Aké Séverin; Nicolay Gian Linard; Daouda Dao;
Site visit of YAMSYS Poster Sustainable yam production in the South-West of Burkina Faso: YAMSYS site of Midebdo 16.10.2016 Bouaké, Ivory Coast Diby Lucien N; Aké Séverin; Daouda Dao; Frossard Emmanuel; Kiba Delwendé Innocent; Nicolay Gian Linard; Nacro Hassan Bismarck; Aighewi Beatrice;
Site visit of YAMSYS Poster Large-scale prediction of soil properties and yam nutrient contents in the West African yam belt based on mid-infrared spectroscopy 16.10.2016 Bouaké, Ivory Coast Bernet Thomas; Aighewi Beatrice; Nacro Hassan Bismarck; Nicolay Gian Linard; Diby Lucien N; Kiba Delwendé Innocent; Daouda Dao; Aké Séverin; Frossard Emmanuel;
Site visit of YAMSYS Individual talk Study of ex ante potential adoption of integrated soil fertility management technologies in yam production systems in Côte d'Ivoire 16.10.2016 Bouaké, Ivory Coast Frossard Emmanuel; Diby Lucien N; Bernet Thomas; Daouda Dao; Kiba Delwendé Innocent; Nacro Hassan Bismarck; Nicolay Gian Linard; Aighewi Beatrice; Aké Séverin;
Site visit of YAMSYS Individual talk Soil Carbon, Nitrogen and Phosphorus dynamics under integrated soil fertility management options for improved yam yields in West Africa 16.10.2016 Bouaké, Ivory Coast Aké Séverin; Frossard Emmanuel; Daouda Dao; Nicolay Gian Linard; Bernet Thomas; Aighewi Beatrice; Nacro Hassan Bismarck; Diby Lucien N; Kiba Delwendé Innocent;
European IFSA symposium Talk given at a conference Theory-based Innovation Platform management. A contribution of sociology to agriculture research and development 15.07.2016 Edgmond , Great Britain and Northern Ireland Nicolay Gian Linard;
7Th international conference of the Africa Soil Science Society Poster Biophysical, Institutional and Economic Drivers of Sustainable Soil Use in Yam System for Improved Food Security in West Africa (YAMSYS) 29.05.2016 Ouagadougou, Burkina Faso Lompo François;
Annual meeting of YAMSYS 2016 Poster Analyse de la rentabilité économique des systèmes de production à base d’igname: Cas de Léo et Midebdo 01.02.2016 Léo, Burkina Faso Aighewi Beatrice; Kiba Delwendé Innocent; Daouda Dao; Diby Lucien N; Six Johan; Nicolay Gian Linard; Frossard Emmanuel; Bernet Thomas; Aké Séverin; Nacro Hassan Bismarck;
Annual meeting of YAMSYS 2016 Poster Perception et gestion endogènes de la fertilité des sols en culture d’igname dans les villages de Onliassan et de Midebdo au Burkina Faso 01.02.2016 Léo, Burkina Faso Nicolay Gian Linard; Six Johan; Daouda Dao; Bernet Thomas; Frossard Emmanuel; Aké Séverin; Kiba Delwendé Innocent; Diby Lucien N; Nacro Hassan Bismarck; Aighewi Beatrice;
Annual meeting of YAMSYS 2016 Poster Quelques aspects de la variabilité intra site et inter site du rendement de l’igname (Dioscorea spp) en Côte d’Ivoire 01.02.2016 Léo, Burkina Faso Nacro Hassan Bismarck; Daouda Dao; Diby Lucien N; Aighewi Beatrice; Kiba Delwendé Innocent; Aké Séverin; Frossard Emmanuel; Six Johan; Bernet Thomas; Nicolay Gian Linard;
Annual meeting of YAMSYS 2016 Poster Rentabilité financière et économique des systèmes innovants de la chaine de valeur de l’igname dans les communes de midebdo et léo 01.02.2016 Léo, Burkina Faso Daouda Dao; Nicolay Gian Linard; Frossard Emmanuel; Kiba Delwendé Innocent; Bernet Thomas; Diby Lucien N; Six Johan; Nacro Hassan Bismarck; Aké Séverin; Aighewi Beatrice;
Annual meeting of YAMSYS 2016 Poster Caractérisation de la végétation et des sols dans différents bassins de production de l’igname en Côte d’Ivoire et au Burkina Faso 01.02.2016 Léo, Burkina Faso Nicolay Gian Linard; Diby Lucien N; Bernet Thomas; Six Johan; Frossard Emmanuel; Nacro Hassan Bismarck; Daouda Dao; Aighewi Beatrice; Aké Séverin; Kiba Delwendé Innocent;
Annual meeting of YAMSYS 2016 Poster Quelques aspects de la variabilité intra site et inter site du rendement del’igname (Dioscorea spp) au Burkina Faso 01.02.2016 Léo, Burkina Faso Nicolay Gian Linard; Aké Séverin; Nacro Hassan Bismarck; Daouda Dao; Aighewi Beatrice; Bernet Thomas; Frossard Emmanuel; Diby Lucien N; Kiba Delwendé Innocent; Six Johan;
Annual meting of YAMSYS 2016 Poster Perception paysanne de la fertilité des sols et sa gestion en culture d’igname en Côte d’Ivoire: Cas de la sous-préfecture de Liliyo 01.02.2016 Léo, Burkina Faso Nicolay Gian Linard; Frossard Emmanuel; Diby Lucien N; Kiba Delwendé Innocent; Bernet Thomas; Daouda Dao; Nacro Hassan Bismarck; Aighewi Beatrice; Six Johan; Aké Séverin;
Annual meeting of YAMSYS 2016 Poster Tendances et caractéristiques de la commercialisation de l’igname dans le ville de Bouaké en côte d’Ivoire, presented during the annual meeting of YAMSYS in Léo 01.02.2016 Léo, Burkina Faso Aighewi Beatrice; Kiba Delwendé Innocent; Bernet Thomas; Nacro Hassan Bismarck; Nicolay Gian Linard; Daouda Dao; Frossard Emmanuel; Diby Lucien N; Six Johan; Aké Séverin;
Annual meeting of YAMSYS 2016 Poster Facteur travail dans les systèmes de production de l’igname et analyse ex-ante d’adoption des innovations sur le site de Tiéningboué en Côte d’Ivoire 01.02.2016 Léo, Burkina Faso Daouda Dao; Six Johan; Nacro Hassan Bismarck; Bernet Thomas; Nicolay Gian Linard; Kiba Delwendé Innocent; Aighewi Beatrice; Aké Séverin; Diby Lucien N; Frossard Emmanuel;
World Congress on Root and Tuber Crops Talk given at a conference Mineral fertilizer inputs to white yam (Dioscorea rotundata Poir) improve tuber yield through a better soil nitrogen uptake 18.01.2016 Nanning, China Frossard Emmanuel;
World Congress on Root and Tuber Crops Poster Biophysical, Institutional and Economic Drivers of Sustainable Soil Use in Yam Systems for Improved Food Security in West Africa (YAMSYS) 18.01.2016 Nanning, China Frossard Emmanuel;
World Congress on Root and Tuber Crops Talk given at a conference Source-sink relationships in Dioscorea alata L, World Congress on Root and Tuber Crop 18.01.2016 Nanning, China Frossard Emmanuel;
Participatory and Integrative ApproachesParticipatory and Integrative Approaches in Researching African Environments – Opportunities, Challenges, Actualities in Natural and Social Sciences Talk given at a conference Limiting soil degradation in West African Yam belt through a participatory integrative and transdisciplinary research 23.10.2015 Bern, Switzerland Kiba Delwendé Innocent;
Semaine de la promotion de la recherche ivoirienne Poster Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS)” 04.09.2015 Abidjan, Ivory Coast Aké Séverin;
World Food System Conference 2015: Tackling world food system challenges across disciplines, sectors and scales Talk given at a conference Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS) 21.06.2015 Monte Verità, Switzerland Frossard Emmanuel;
Célébration du partenariat scientifique Ivoiro-Suisse Poster Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS)” 11.06.2015 Abidjan, Ivory Coast Kiba Delwendé Innocent;
World Food System Conference 2015: Tackling world food system challenges across disciplines, sectors and scales Poster Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS) 19.03.2015 Filzbach/Kerenzerberg, Switzerland Kiba Delwendé Innocent;
R4d forum 2015, "Ecosystems and Food security" Poster Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS) 18.03.2015 Filzbach, Switzerland Aighewi Beatrice; Kiba Delwendé Innocent; Nicolay Gian Linard; Daouda Dao; Frossard Emmanuel;


Communication with the public

Communication Title Media Place Year
Media relations: print media, online media YAMSYS project team and partners met in Soubré (Côte d’Ivoire) for the 2nd annual meeting of the Transformations International 2017
Video/Film Activities of YAMSYS in Burkina Faso International 2016
Video/Film Activities of YAMSYS in Côte d'Ivoire International 2016
Media relations: print media, online media Cultiver autrement l’igname pour préserver les sols lefaso.net International 2016
Media relations: print media, online media Culture d’ignames et fertilité des sols au Burkina : YAMSYS fait la revue des activités de recherche lefaso.net International 2016
Media relations: radio, television Meeting of the Innovation Platform of YAMSYS in Léo Radio Evangile Développement International 2016
Media relations: radio, television Meeting of the Innovation Platform of YAMSYS in Tiéningboué Regional du Soir International 2016
Media relations: radio, television Progress made by the YAMSYS project to the local authorities in Léo, Burkina Faso Radio diffusion Télévision du Burkina Faso International 2016
Media relations: radio, television Progress made by the YAMSYS project to the local authorities in Tieningboué Régional Bouaké/Radiodiffusion Télévision Ivoirienne International 2016
Media relations: radio, television Raising awareness on sustainable management of soil and environment protection in Léo International 2016
Media relations: radio, television Réunion annuelle du projet YAMSYS à Léo Radio Télévision du Burkina International 2016
Media relations: radio, television Training of sellers of agricultural intrants members of the innovation Platform of YAMSYS in Léo Radio Evangile Developpement International 2016
Media relations: print media, online media Utilisation d’intrants agricoles : Pour la santé de l’homme et la protection de l’environnement, YAM lefaso.net International 2016
Video/Film 3 mn speech on YAMSYS International 2015
Media relations: print media, online media Filière igname : YAMSYS veut organiser les producteurs pour améliorer la production lefaso.net International 2015
Media relations: radio, television Lancemen du projet YAMSYS sur le site de Léo Radio Télévision du Burkina International 2015
Media relations: radio, television Lancement de YAMSYS à Léo Radio Evangile Développement International 2015
Media relations: radio, television Lancement du projet YAMSYS sur le site de Tiéningboué Le régional de Bouaké International 2015
Media relations: print media, online media Le projet YAMSYS pour améliorer la productivité de l’igname en Côte d’Ivoire @bidj@n.net International 2015
Media relations: print media, online media Le projet YAMSYS restitue les résultats de ses premières etudes lefaso.net International 2015
Media relations: print media, online media New project to improve yam-cropping systems in Cote d’Ivoire and Burkina Faso Allanblackia, Billingal Monthly-ICRAF International 2015
Media relations: print media, online media Project to improve yam-cropping systems in Cote d’Ivoire and Burkina Faso launched Transformations, Bi-weekly Internal Newsletter of the World Agroforestry International 2015
Media relations: print media, online media Redynamisation de la culture de l’igname en Afrique de L’Ouest: Le CSRS abrite le lancement du proje Bulletin d’information du CSRS N°008 International 2015
Media relations: radio, television Réunion de la Plateforme d'Innovation YAMSYS de Léo Radio Evangile Développement International 2015
Media relations: radio, television Réunion de la Plateforme d'Innovation YAMSYS de Tiéningboué Régional du Soir International 2015
Media relations: print media, online media Sécurité Alimentaire, le projet « YAMSYS » pour l’igname lancé les régionales N°1599, page II dans Sidwaya N°7953 International 2015
New media (web, blogs, podcasts, news feeds etc.) Two new yam projects launched: CAY-Seed and YAMSYS IITA blogs International 2015
Media relations: print media, online media Une plateforme d'interaction des acteurs de l'igname mise en place à Tiéningboué @bidj@n.net International 2015
Media relations: print media, online media YAMSYS pour plus d’igname à Midebdo lefaso.net International 2015

Associated projects

Number Title Start Funding scheme
164807 Edible Research: Hands-on learning for sustainability in agroecosystems 01.08.2016 Agora
177584 Biophysical, institutional and economic drivers of sustainable soil use in yam systems for improved food security in West Africa (YAMSYS) 01.12.2017 r4d (Swiss Programme for Research on Global Issues for Development)

Abstract

Yam (Dioscorea sp) is an underutilised crop despite it feeds155 million persons in the tropics. More than 90% of the global yam production is in West Africa. The increase in yam production in West Africa over the last decades was mostly realised through increasing the area under cultivation, while tuber yield increased only slightly. Yam requires a very high soil fertility level; hence, it is traditionally grown as the first crop after clearing long-term fallow or primary vegetation, but unfortunately often without any external inputs. This practice has resulted in a significant encroachment in biodiversity rich landscapes and in negative nutrient budgets leading to soil degradation. Although low soil fertility is often mentioned by producers as one of the most important factors limiting yam yields, very little research has been done on this topic. YAMSYS is an inter- and trans-disciplinary project based on a partnership between institutions from Switzerland (ETH, FiBL), Côte d’Ivoire (CSRS, UFHB), Burkina Faso (INERA, UPB), two institutions of the CGIAR system (ICRAF, IITA), yam producers, and other key actors from relevant social systems. The objective of YAMSYS is to develop biophysically, institutionally and economically accepted soil management innovations for increased crop productivity, food security, profitability, and environmental sustainability of yam systems in selected agro-ecological zones of West Africa. YAMSYS will have 4 pilot sites representative of the biophysical conditions of the West African yam belt, going from the sub humid forest (South West of Côte d’Ivoire) to the Northern Guinean savannah (Centre South of Burkina Faso) and presenting distinct economic and institutional contexts. YAMSYS will deliver 4 outcomes. Outcome 1 will be a state-of-the-art characterisation of the 4 pilot sites. The biophysical baseline will be assessed by establishing one “sentinel site” per pilot site using the land health surveillance framework. Based on rapid rural appraisals the economic and institutional contexts of each pilot site will then be delineated. Finally, the existing yam systems and the yam value chain will be described. Outcome 2 will be improved soil management options for yam systems for each pilot site. These options will be defined in collaboration with farmers and other key actors and will be first tested in mother trials supervised by scientists (2/site). Farmers will then pick their favourite options and test them in baby trials (15/site). The effects of these options on plant performance and soil fertility will be assessed. A farm household optimisation model will be used to evaluate the impact of existing and improved soil management options on farm net income. As the allocation of income derived from yam might be submitted to strong social norms, we will develop different modelling scenarios to assess the effect of these norms on income distribution derived from improved yam production. The proposed soil innovations will be also carefully evaluated from a sociological point of view as many aspects (beliefs, desires, social pressure) that are difficult to capture may effect adoption. Finally, the best options will be demonstrated by champion farmers to others at each site. Outcome 3 will be the state-of-the-art facilitation of innovation and adoption patterns in yam systems. This outcome will be based largely on the activities of innovation platforms (IPs) at site and country levels including key actors involved in yam systems. The first output of this outcome will be at the beginning of the project: the definition of a joint vision for future yam systems at each site. Then, the IPs will analyse the stumbling blocks for sustainable soil management in yam systems. Finally, they will guide the development of a practical decision tool for site-specific soil management for yam systems in West Africa. The 4th Outcome will deal with communication, application of the results, and capacity building. The results will be communicated to the social systems relevant to the project. The on-going participatory process taking explicitly into account the economics and institutional contexts prevailing at each site will lead to knowledge development and adoption of best soil options. YAMSYS will involve two postdocs and train five PhD and 20 MSc from West Africa, develop an e-learning blended course on yams, organise one international conference and one PhD summer school on yam systems and yam value chain and also contribute to undergraduate education. Finally, together with our international partners we will construct a global network for underutilised root and tuber tropical crops. We assume that the approaches developed in YAMSYS will contribute in the future to a better use of these crops for improving food security and income generation of smallholders across the tropics.
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