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Yield Perceptions, Determinants and Adoption Impact of on Farm Varietal Mixtures for Common Bean and Banana in Uganda

Author

Listed:
  • Rose Nankya

    (Bioversity International, SSA Regional Office, P.O. Box 24384, Kampala, Uganda)

  • John W. Mulumba

    (National Agricultural Research Organization, (NARO), P.O. Box 40, Entebbe, Uganda)

  • Francesco Caracciolo

    (University of Naples “Federico II”, 80138 Napoli NA, Italy)

  • Maria Raimondo

    (University of Naples “Federico II”, 80138 Napoli NA, Italy)

  • Francesca Schiavello

    (Food and Agriculture Organization (FAO), Viale delle Terme Di Caracalla, 00153 Rome, Italy)

  • Elisabetta Gotor

    (Bioversity International, Via dei Tre Denari, 472/a, 00054 Maccarese, RM, Italy)

  • Enoch Kikulwe

    (Bioversity International, SSA Regional Office, P.O. Box 24384, Kampala, Uganda)

  • Devra I. Jarvis

    (Bioversity International, Via dei Tre Denari, 472/a, 00054 Maccarese, RM, Italy
    Department of Crop and Soil Sciences, Washington State University, Pullman, WA 99164, USA)

Abstract

Crop variety mixtures (different varieties of a crop grown together in a single plot) have been successfully deployed in pathogen and pest management for several crops including wheat, common bean and rice. Despite the available evidence, promotion of this approach has remained limited in many countries, including Uganda. The factors that influence farmers’ adoption of varietal mixtures for common bean and banana were assessed, as well as the perceptions of farmers on the effects of mixtures on yields, through household surveys and statistical modelling. A three-year yield increase in both common bean and banana varietal mixtures in farmer fields, of 5.2% and 28.6%, respectively, is realized using robust OLS estimates. The study reveals that accessing knowledge on the importance of crop varietal mixtures and the skills relating to the approach are crucial for their adoption. Location of the farm significantly determined the perceived yield change, which calls for more research into mixtures’ suitability under particular contexts in respect to compatibility of genotypes, management practices and appropriate acreage for maximum impact. The positive effects of mixtures on yields make it an effective bioeconomy strategy. Policies that minimize the adoption barriers could improve the adoption of crop varietal mixtures on a wider scale.

Suggested Citation

  • Rose Nankya & John W. Mulumba & Francesco Caracciolo & Maria Raimondo & Francesca Schiavello & Elisabetta Gotor & Enoch Kikulwe & Devra I. Jarvis, 2017. "Yield Perceptions, Determinants and Adoption Impact of on Farm Varietal Mixtures for Common Bean and Banana in Uganda," Sustainability, MDPI, vol. 9(8), pages 1-15, July.
    • Handle: RePEc:gam:jsusta:v:9:y:2017:i:8:p:1321-:d:106241
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    References listed on IDEAS

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    3. Maria Raimondo & Francesco Caracciolo & Luigi Cembalo & Gaetano Chinnici & Biagio Pecorino & Mario D’Amico, 2018. "Making Virtue Out of Necessity: Managing the Citrus Waste Supply Chain for Bioeconomy Applications," Sustainability, MDPI, vol. 10(12), pages 1-20, December.

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