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Adaptation of yam (Dioscorea spp.) cultivation to changing environment and economic constraints in Benin, West Africa

Vernier Philippe, Dossou Romuald A.. 2002. Adaptation of yam (Dioscorea spp.) cultivation to changing environment and economic constraints in Benin, West Africa. In : Potential of root crops for food and industrial resources : Twelfth Symposium of the International Society for Tropical Root Crops (ISTRC), Sep. 10-16, 2000, Tsukuba, Japan. Nakatani Makoto (ed.), Komaki Katsumi (ed.). ISTRC. Tsukuba : Cultio Corporation, 352-359. Symposium of the International Society for Tropical Root Crops. 12, Tsukuba, Japon, 10 Septembre 2000/16 Septembre 2000.

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Résumé : The Republic of Benin is a very important and dynamic yam producer in West Africa. During the past 30 years the country's yam output was multiplied by more than 3 that represents an annual increase rate of 3.75%. The traditional yam cultivation is based on slash and burn practices but now cropping techniques are evolving for many reasons. In order to understand and to assess farmers' yam production strategies, a study of yam based farming systems was carried out in the Borgou region which can be considered as the core of Benin's yam belt. 60 farmers have been followed up in detail (including yield measurement) during three cropping years and in addition 300 others farmers were interviewed more rapidly. The comparison between different groups of yam growers as yam chip oriented producers, sedentarized Fulani shepherd recently involved in agriculture or cotton oriented farmers, allow to understand the different strategies used for yam cultivation. In particular the management of the different genetic resources according to various constraints, such as fallow shortening or market demand allow the understanding of how farmers adapt themselves to external changes.

Mots-clés Agrovoc : Dioscorea, pratique culturale, système de culture, enquête sur les exploitations agricoles, groupe éthnique, données de production, variété, Gossypium, marketing

Mots-clés géographiques Agrovoc : Bénin

Classification Agris : F08 - Systèmes et modes de culture
F01 - Culture des plantes

Auteurs et affiliations

  • Vernier Philippe, CIRAD-CA-CALIM (BEN)
  • Dossou Romuald A., INRAB (BEN)

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/486905/)

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