Extension master gardener (EMG) volunteers can be a valuable resource for Extension professionals in applied research if they are given clear instructions and tools for success. We developed recruitment and training materials for EMGs that equipped them for planting, maintaining, and collecting data in four demonstration/research gardens to measure the benefits of biochar on plant growth. EMGs' evaluations showed 80% satisfaction with the quality of the project, the education they gained about biochar, the volunteer training experience, and the communication methods used. Volunteers reported that working in applied research was a fulfilling educational experience.

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