Agricultural Extension
Domain 7: Agricultural Extension
This domain tests how extension workers communicate with farmers and support adoption of improved practices. It covers methods, communication, farmer groups, participatory approaches and monitoring.
Core rules and concepts
- Extension methods: individual (farm visits, office calls), group (demonstrations, field days, farmer groups) and mass (radio, posters, SMS). Choose by audience size, urgency and complexity.
- Diffusion of innovations: adoption follows awareness, interest, trial, evaluation and adoption. Innovators and early adopters lead; laggards need more support.
- Participatory approaches: involve farmers in problem diagnosis, planning and evaluation; use local knowledge and demonstration plots.
- Monitoring and evaluation: monitoring tracks activities; evaluation judges outcomes and impact.
- Feedback: two-way communication helps researchers and extension workers adjust messages.
Worked example
An extension officer must reach 200 farmers in one week about a new maize variety. Option A: 3 farm visits per day for 5 days = 15 farmers. Option B: two field days with 80 farmers each = 160 farmers, plus 10 follow-up visits = 170. Option C: one radio programme plus 5 group meetings of 40 = 205 contacts, but radio is one-way. The reasoning: group and mass methods give wider reach; individual visits give depth. A blended plan-radio announcement, field day, then follow-up visits to early adopters-balances reach and understanding.
Traps that cost marks
- Assuming mass media alone changes complex practices.
- Confusing monitoring (activity tracking) with evaluation (results judgement).
- Ignoring farmer participation and local knowledge.
- Counting contacts as adoption.