Agricultural Extension and Rural Development
What the exam tests
Agricultural Extension and Rural Development tests extension approaches, diffusion and adoption of innovations, group formation, farmer field schools, rural institutions and Nepal's pluralistic extension system.
Core rules
- Diffusion is the spread of an innovation through a social system over time; adoption is an individual farmer's decision to use it. They are related but not the same.
- Rogers' adopter categories: innovators, early adopters, early majority, late majority and laggards. Early adopters are often opinion leaders, not necessarily the first innovators.
- Extension methods are individual (farm visit, telephone), group (demonstration, field day, FFS) and mass (radio, SMS, poster). Choose by urgency, cost and audience size.
- Nepal's extension is pluralistic: Agriculture Knowledge Centres, local governments, cooperatives, NGOs and private agrovets all provide advice.
Worked example
A ward has 200 farming households; 40 have adopted a new maize variety after a field day. Adoption rate = 40 ÷ 200 × 100 = 20%. If 25 of the 40 adopters are early adopters, they represent 62.5% of adopters but only 12.5% of all households. This distinction matters when reporting adoption versus potential reach.
Traps
Equating exposure with adoption; counting only participants as adopters; assuming the innovation is scale-neutral; and ignoring local government's role in planning extension.