Intensification in cocoa cropping systems : is agroforestry a solution for sustainability? The case of Manso Amenfi, Western region, Ghana

Ruf François, Deheuvels Olivier, Sarpong Daniel. 2010. Intensification in cocoa cropping systems : is agroforestry a solution for sustainability? The case of Manso Amenfi, Western region, Ghana. In : 15th International Cocoa Research Conference : cocoa productivity, quality, profitability, human health and the environment = 15e Conférence internationale sur la recherche cacaoyère : Productivité, qualité, rentabilité du cacao, santé humaine et environnement ; 15 Conferencia Internacional de Pesquisas em Cacau. Cacau : produtividade, qualidade, rentabilidade, saude humanna e amb. Lagos : Cocoa Producers' Alliance, pp. 355-364. Conférence internationale sur la recherche cacaoyère. 15, San José, Costa Rica, 9 October 2006/14 October 2006.

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Titre français : Intensification et cacao : l'agroforesterie est-elle une garantie de durabilité ? Le cas de Manso Amenfi au Ghana / Titre portugais : Intensificação nos sistemas de cultura do cacau : é a agrofloresta uma solução para a sustentabilidade ? O caso de manso amenfi, região ocidental, Gana / Titre espagnol : Intensificación en los sistemas de cultivo de cacao : el sistema agroforestal es una solución sustentable ? el caso de manso amenfi, región occidental, Ghana

Abstract : Do agroforestry practices help to improve cocoa sustainability in the humid tropics? Although it sometimes tends to be put under the form of an enthusiastic affirmation, is it not a question that still deserves detailed surveys? This question was initially raised in Côte d'Ivoire by some members of the team who developed a methodology combining questionnaires passed with farmers and direct field observations through density squares. This methodology has been applied to the case of the Amenfi central district of the ghanaian western region, which can be considered as an ¿intermediate¿ region between the old cocoa farms in the East and the young ones in the South-West of the country. In these intermediate zones of the country, agroforestry techniques applied during the 20th century and their mastering by farmers were part of their low risk and low costs strategies. They helped to maintain some plant-diversity in the cocoa farms but did not prevent farmers from massively adopting zero shade techniques and massive deforestation, especially in the extreme western region. As found in Côte d'Ivoire, the old shaded cocoa farms are considered by farmers as a thing of the past, very linked to the old "amelonado" variety that was first introduced. New hybrids sown by farmers, and mostly provided by local research institutions, have been produced under zero shade and high input conditions. The farmers using them tend to reduce shade, even in their old cocoa plots. This paper shows that in the 2000s, farmers need higher returns per hectare and more selective shade to increase the potential of hybrids. This means a much more selective choice of trees than in the past, especially oriented towards trees that have a high value. The idea of rebuilding the old agroforestry pattern is thus a myth. The future of cocoa agroforestry will lie in a commerciallyoriented one, hopefully shored up by some combination with its shade and cocoa protection function. This certainly means a much lower density and number of trees species in the cocoa farm than in the past, hence probably much less biodiversity. This work contributes to identify some of the most promising trees. It also confirms the need to move forward in the legislation field, as more and more farmers do exploit some timber on their own, always with high losses and often at terribly low prices. An absolute prerequisite for any future agroforestry project will thus be opening institutional windows to enable farmers making money with timber, legally and under better technical conditions. (Résumé d'auteur)

Mots-clés Agrovoc : Theobroma cacao, Agroforesterie

Mots-clés géographiques Agrovoc : Ghana, Côte d'Ivoire

Classification Agris : E16 - Production economics
F08 - Cropping patterns and systems

Auteurs et affiliations

  • Ruf François, CIRAD-TERA-UPR Agriculteurs et innovations (GHA)
  • Deheuvels Olivier, CIRAD-CP-UMR SYSTEM (CRI)
  • Sarpong Daniel, University of Ghana (GHA)

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