Abstract
An improved fallow agroforestry practice, that involves planting Acacia auriculiformis trees to accelerate soil fertility recovery, was taught to 306 farmers in Mampu agroforestry zone on the Batéké Plateau in the Democratic Republic of the Congo, from 1995 to 2001. Our study (1) assessed the principal factors that determined the continued application of this practice by farmers; and (2) identified the benefits and constraints perceived by those farmers who adopted the practice two decades ago. We applied a mixed approach that combined quantitative as well as qualitative evaluation. First, a multiple linear regression model was constructed based on a survey of 121 farmers that adopted the new practice. We subsequently conducted semi-structured interviews with 12 adopters. The regression models identified that the availability of labour, based on the number of household members working in the fields, best explained the continued use of the improved fallow practice (P = 0.0898). In the interviews, revenue from the sale of charcoal and improvement in crop yields were cited as key benefits of improved fallow, while the lack of nurseries for tree production and the problems of access to water were the main drawbacks mentioned by adopters. The study results identify the principal factors influencing the adoption of this practice, as well as the perception of farmers; this information can be used to guide the dissemination of improved fallow practice to other communities on the Batéké Plateau landscape.
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Acknowledgements
The authors sincerely thank the farmers of Mampu who made this study possible. Special thanks to Mr. Raoul Mbambi, coordinator of UFAM (Farmers Association of Mampu). The authors would like to thank Dr Marie Coyea (Department of Wood and Forest Sciences, Laval University) who translated the manuscript from French to English and provided comments on the draft manuscript. Our research did not receive any specific funding from public, commercial or not-for-profit funding agencies. Etienne Kachaka Yusufu however received funding from the laboratories of Professors Damase Khasa and Alison Munson as well as financial support from his father, Professor Kachaka Sudi Kaiko.
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Appendix
Appendix
Quantitative analysis
Survey 1
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1.
Sex: Male, female
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2.
Age:
-
3.
Education (training): Yes, No
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4.
Marital Status: Married (In a relationship) (1) or single (0)
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5.
Since when have you settled in Mampu as a farmer? (Number of years)
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6.
What is the size of your household? (Number of persons in the family)
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7.
How many people in your household work in the fields?
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8.
Do you hire other collaborators? Yes (1) or No (0)
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9.
If yes, how many collaborators
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10.
Do you own your land? Yes (1) or Non (0)
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11.
Do you employ hired labour? Yes (1) or No (0)
If yes, how many persons?
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12.
How much would you estimate your annual farm income? (Number of bags of cassava, number of bags of corn)
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13.
How much would you estimate your annual fuelwood income? (Number of bags of charcoal)
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14.
How much would you estimate your annual income from honey sales? (Number of bottles of honey or number of litres)
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15.
Do you have a secondary activity outside agriculture (farming)? Yes (1) or No (0)
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16.
Do you have good access to a market for the flow of your productions? Yes (1) or No (0)
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17.
Do you practice breeding? Yes (1) or No (0)
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18.
Do you benefit from material assistance for the realization of your agricultural activities? Yes (1) or No (0)
Qualitative analysis
Survey 2
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1.
Sex: Male, female
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2.
Age:
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3.
Education (training): Yes, No
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4.
Marital status: Married (In a relationship) or single
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5.
What is the size of your household?
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6.
What does improved fallow represent to you?
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7.
(Expected response: perception (understanding) of improved fallow)
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8.
Is improved fallow a way for you to generate more income?
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9.
Is improved fallow a way to organize your farming activities?
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10.
Is improved fallow a useful or unnecessary occupation of your land?
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11.
Is improved fallow a way to produce honey or charcoal?
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12.
Does improved fallow represent extra work or investment?
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13.
What crop rotations do you make?
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14.
Do you use other tree species than Acacia auriculiformis?
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15.
What are the spacings used during your Acacia auriculiformis plantings?
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16.
When do you decide to harvest the trees? (at what age?)
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17.
Do you have a marketing channel for wood, cassava or honey?
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18.
Is your wood sold as charcoal?
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19.
Is wood processing difficult or expensive?
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Kachaka, É.Y., Munson, A.D., Gélinas, N. et al. Adoption of an improved fallow practice using Acacia auriculiformis on the Batéké Plateau in the Democratic Republic of the Congo. Agroforest Syst 94, 1047–1058 (2020). https://doi.org/10.1007/s10457-019-00474-5
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DOI: https://doi.org/10.1007/s10457-019-00474-5