Journal of
Development and Agricultural Economics

  • Abbreviation: J. Dev. Agric. Econ.
  • Language: English
  • ISSN: 2006-9774
  • DOI: 10.5897/JDAE
  • Start Year: 2009
  • Published Articles: 538

Full Length Research Paper

Diffusion of water harvesting for rainfed agriculture in sub-Saharan Africa: Case of zaï practice in Burkina Faso

Beteo Zongo
  • Beteo Zongo
  • University of Dedougou, 03 P. Box BP 176 Dedougou 03, Burkina Faso. 2Rural Development and Economic United, Gembloux Agro-Bio Tech, University of Liege, P. Box 5030, Gembloux, Belgium.
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Omer S. Combary
  • Omer S. Combary
  • Department of Economics and Management, University Ouaga II, Ouagadougou, Burkina Faso.
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Souleymane Ouédraogo
  • Souleymane Ouédraogo
  • Institute for environmental and Agricultural Research, 01 P. Box 476 Ouagadougou 01, Burkina Faso.
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Patrice Toé
  • Patrice Toé
  • Institute for Rural Development, University Nazi BONI, Bobo-Dioulasso, 01 P. Box 1091 Bobo 01, Burkina Faso.
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Thomas Dogo
  • Thomas Dogo
  • Rural Development and Economic United, Gembloux Agro-Bio Tech, University of Liege, P. Box 5030, Gembloux, Belgium.
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  •  Received: 27 October 2021
  •  Accepted: 12 January 2022
  •  Published: 31 May 2022

Abstract

After the droughts of the 1970s, the so called zaï technique (small water harvesting pits), which is a water harvesting technique, has been promoted to farmers in several Sahelian countries to allow rainfed crops to adapt to dry spells. Its temporal diffusion remains a subject of little research. This study highlights the determinants of zaï diffusion in the Sahelian and Sudano-Sahelian zones in Burkina Faso. It is based on a survey of 629 farmers divided into different categories according to the diffusion theory analyzed by using a multinomial logit model. The analysis reveals that 49.1% of sampled households have adopted the practice of zaï in the past four decades on a fraction of their farm. The adopters can be classified as such: innovators (0.5%), early adopters (2.5%), late adopters (8.3%) and laggards (37.8%). Factors determining diffusion of zaï practice are the characteristics of agro-climatic zones, membership in farmers’ organization and age of households’ heads.

Key words: Agriculture, adoption, spread, rainwater, zaï.