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Motivating Participation and Adoption in Sustainable Land Management Training: Experimental Evidence from Benin

Last registered on December 29, 2025

Pre-Trial

Trial Information

General Information

Title
Motivating Participation and Adoption in Sustainable Land Management Training: Experimental Evidence from Benin
RCT ID
AEARCTR-0017464
Initial registration date
December 15, 2025

Initial registration date is when the trial was registered.

It corresponds to when the registration was submitted to the Registry to be reviewed for publication.

First published
December 26, 2025, 2:24 AM EST

First published corresponds to when the trial was first made public on the Registry after being reviewed.

Last updated
December 29, 2025, 11:06 AM EST

Last updated is the most recent time when changes to the trial's registration were published.

Locations

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Primary Investigator

Affiliation
Potsdam Institute for Climate Impact Research

Other Primary Investigator(s)

PI Affiliation
Potsdam Institute of Climate Impact Research
PI Affiliation
Laboratoire d'Analyses et de Recherches sur les Dynamiques Economiques et Sociales (LARDES)
PI Affiliation
Laboratoire d'Analyses et de Recherches sur les Dynamiques Economiques et Sociales (LARDES)
PI Affiliation
Laboratoire d'Analyses et de Recherches sur les Dynamiques Economiques et Sociales (LARDES)
PI Affiliation
Potsdam Institute of Climate Impact Research

Additional Trial Information

Status
On going
Start date
2025-12-03
End date
2027-05-31
Secondary IDs
Prior work
This trial does not extend or rely on any prior RCTs.
Abstract
This study assesses the effectiveness of an information-based intervention designed to increase maize farmer engagement with sustainable land management (SLM) training and the adoption of SLM practices in the district of Pèrèrè in North-East Benin. Farmers in the study area face declining soil fertility resulting in substantial yield losses. The intervention provides a randomly selected subset of farmers with personalized information on the status of their soil, the implications for yields as well as recommendations on how to prevent further soil degradation. The study examines whether this information can increase participation in an upcoming SLM training participation and encourage uptake of taught practices.
External Link(s)

Registration Citation

Citation
Michelsen, Paul et al. 2025. "Motivating Participation and Adoption in Sustainable Land Management Training: Experimental Evidence from Benin." AEA RCT Registry. December 29. https://doi.org/10.1257/rct.17464-2.0
Experimental Details

Interventions

Intervention(s)
This intervention is part of a larger scale RCT that studies the effectiveness of an SLM training, which will be implemented in 25 villages in 2026 (see trial title: "Effectiveness of Sustainable Land Management Training for Maize Farmers in Benin"). During the baseline data collection in December 2025, 50% of the 1600 respondents are randomly assigned to receive an individualized leaflet on soil fertility and measures to prevent soil degradation and improve yields. This leaflet contains plot specific information on soil color, soil texture, and soil pH assessed and measured during data collection as well as information on the upcoming training.The control group only receives information on the training. The leaflet aims to highlight the urgency to prevent further soil degradation and to promote farmers’ agency in doing so.

Intervention Start Date
2025-12-03
Intervention End Date
2025-12-24

Primary Outcomes

Primary Outcomes (end points)
1. Training participation
2. Training participation intensity
3. Willingness to participate in agricultural training
4. Perceived benefits of sustainable land management (SLM) training

Primary Outcomes (explanation)
(1) Training participation: Training participation on day one of the training on SLM will be measured by using administrative training data. Attendance of respondents will be checked for each training day.
(2) Training participation intensity: This will be measured as the number of training days present divided by the total number of training days using administrative training data.
(3) Willingness to participate in agricultural training: Willingness to participate will be measured as the maximum number of consecutive agricultural training days a respondent would attend.
(4) Perceived benefits of SLM training will be assessed through three likert-scale framed questions on the respondent’s perception on whether SLM training is worthwhile and helpful.

Secondary Outcomes

Secondary Outcomes (end points)
1. Practice uptake (production and application of organic fertilizer, intercropping, planting tree hedges, installing earthen or stone bunds/barriers)
2. Change in awareness

Secondary Outcomes (explanation)
(1) Practice uptake: Implementation of each practice on the pre-identified degraded plot will be measured using:
i) Farmer self-reports, and
ii) Objective verification, including enumerator field observations and satellite imagery.
(2) Change in awareness: Change in awareness is measured by assessing farmers’ knowledge about soil and its role in crop yields. This is inferred from changes in (i) the extent to which soil is identified as a factor affecting yields, (ii) the accuracy of knowledge about soil fertility, and (iii) stated reasons for poor soil fertility. Together, these measures capture changes in awareness of soil conditions and their yield implications.

Experimental Design

Experimental Design
The study is an individually randomized controlled trial conducted in 50 villages in the Pèrèrè region of North-East Benin. In each village, half of 32 maize producers who meet the eligibility criteria of the SLM training are randomly selected into treatment and control. Randomization is stratified by village and genders. The treatment group receives a personalized information leaflet summarizing the fertility characteristics of their soils (color, texture, and pH) together with recommendations for sustainable land management (SLM) practices, highlighting the urgency to act and their agency in the process. Producers of the control group do not receive the leaflet, but are informed about the upcoming SLM training that they might be able to participate in if their village is selected. After an enumerator has finished the main questionnaire, the respondent and enumerator will go to a plot specified by the respondent in the interview. Here, the enumerator will start a second questionnaire, which includes assessing the plot’s soil pH, soil color and soil texture. After having marked those measurements on a leaflet, it is provided to the respondent. The intervention aims to increase producers’ sense of urgency and agency regarding soil degradation and SLM adoption. Producers are followed to assess effects on training uptake and subsequent implementation of SLM measures.
Experimental Design Details
Not available
Randomization Method
Randomization done in office by a computer
Randomization Unit
Individual
Was the treatment clustered?
No

Experiment Characteristics

Sample size: planned number of clusters
1600 farmers
Sample size: planned number of observations
1600
Sample size (or number of clusters) by treatment arms
800 farmers in the treatment group, 800 farmers in the control group
Minimum detectable effect size for main outcomes (accounting for sample design and clustering)
IRB

Institutional Review Boards (IRBs)

IRB Name
Ethics Committee University of Göttingen
IRB Approval Date
2025-10-27
IRB Approval Number
N/A
IRB Name
Institut National de la Statistique et de la Demographie (INSTAD) Benin
IRB Approval Date
2025-11-21
IRB Approval Number
N/A
Analysis Plan

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