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Different ways to cut a cake: Comparing expert-based and statistical typologies to target sustainable intensification technologies, a case-study in Southern Ethiopia

Berre David, Baudron Frédéric, Kassie Menale, Craufurd Peter, Lopez-Ridaura Santiago. 2019. Different ways to cut a cake: Comparing expert-based and statistical typologies to target sustainable intensification technologies, a case-study in Southern Ethiopia. Experimental Agriculture, 55, n.spéc. S.1. The options by context approach: A paradigm shift in agronomy : pp. 191-207.

Journal article ; Article de recherche ; Article de revue à facteur d'impact
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Quartile : Q2, Sujet : AGRONOMY

Abstract : Understanding farm diversity is essential to delineate recommendation domains for new technologies, but diversity is a subjective concept, and can be described differently depending on the way it is perceived. Historically, new technologies have been targeted primarily based on agro-ecological conditions, largely ignoring socioeconomic conditions. Based on 273 farm households' surveys in Ethiopia, we compare two approaches for the delineation of farm type recommendation domains for crop and livestock technologies: one based on expert knowledge and one based on statistical methods. The expert-based typology used a simple discriminant key for stakeholders in the field to define four farm types based on Tropical Livestock Unit, total cultivated surface and the ratio of these two indicators. This simple key took only a few minutes to make inferences about the potential of adoption of crop and livestock technologies. The PCA-HC analysis included a greater number of variables describing the farm (land use, household size, cattle, fertilizer, off-farm work, hiring labour, production). This analysis emphasized the multi-dimensional potential of such a statistical approach and, in principle, its usefulness to grasp the full complexity of farming systems to identify their needs in crop and livestock technologies. A sub-sampling approach was used to test the impact of data selection on the diversity represented in the statistical approach. Our results show that diversity structure is significantly impacted according to the choice of a sub-sample of 15 of the 20 variables available. This paper shows the complementarity of the two approaches and demonstrates the influence of data selection within large baseline data sets on the total diversity represented in the clusters identified. (Résumé d'auteur)

Mots-clés géographiques Agrovoc : Éthiopie

Mots-clés libres : Typologie, Ethiopia, Cluster, Sustainable intensification

Classification Agris : E20 - Organization, administration and management of agricultural enterprises or farms
E14 - Development economics and policies
U30 - Research methods
U10 - Computer science, mathematics and statistics

Champ stratégique Cirad : CTS 2 (2019-) - Transitions agroécologiques

Auteurs et affiliations

  • Berre David, CIRAD-PERSYST-UPR AIDA (FRA) - auteur correspondant
  • Baudron Frédéric, CIMMYT (ETH)
  • Kassie Menale, CIMMYT (KEN)
  • Craufurd Peter, CIMMYT (KEN)
  • Lopez-Ridaura Santiago, CIMMYT (MEX)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/582170/)

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