Design and evaluation of a mobile-based extension service for smallholder farmers

Thesis Abstract

Smallholder farmers in rural regions face significant challenges in accessing timely, accurate, and relevant agricultural extension information, which impedes their productivity and livelihood sustainability. Traditional extension systems often suffer from limitations such as inadequate reach, high operational costs, and delayed dissemination of crucial agronomic practices, necessitating innovative solutions that leverage mobile technology. This study aims to design, implement, and evaluate a mobile-based extension service tailored to smallholder farmers’ needs to improve their access to agricultural information and advisory services. The specific objectives include assessing the current information dissemination gaps, developing an interactive mobile platform integrated with localized content, evaluating user acceptance and engagement, and measuring the impact on farm management practices and productivity. The study employs a mixed-methods research design grounded in the Technology Acceptance Model (TAM) and Diffusion of Innovations theory. Quantitative data were collected through structured questionnaires administered to a sample of 400 randomly selected smallholder farmers across two agricultural districts. Qualitative data were obtained via focus group discussions and key informant interviews with extension agents, farmers, and technology developers to understand contextual factors influencing technology adoption. The data collection instruments were validated through expert review and pilot testing, achieving reliability coefficients exceeding 0.85. Quantitative data were analyzed using descriptive statistics, regression analysis, and paired t-tests to evaluate changes over time, while thematic analysis was employed for qualitative data to identify barriers, facilitators, and perceptions regarding the mobile extension service. The expected findings indicate that the mobile-based extension platform significantly improves farmers’ access to timely information related to crop management, pest control, weather forecasting, and market prices. Results from regression analyses are anticipated to demonstrate a positive correlation between mobile service usage and increased adoption of recommended practices, leading to measurable improvements in crop yields—projected to range between 10% and 20% over baseline measures. Additionally, the study expects high levels of user acceptance driven by perceived ease of use and usefulness, as predicted by TAM. The qualitative insights are expected to reveal critical factors influencing sustained engagement, including digital literacy levels, service affordability, and trust in technology. This research contributes to the existing body of knowledge by providing empirical evidence on the effectiveness, usability, and impact of mobile extension services in a smallholder context, integrating behavioral theories with technological intervention frameworks. It highlights how targeted mobile applications can complement traditional extension work, fostering scalable, cost-effective, and responsive agricultural advisory systems. The study also offers a conceptual model outlining pathways through which mobile-based information delivery influences farmers’ decision-making and productivity, thus filling notable gaps in current literature regarding contextual adaptation and behavioral determinants of technology adoption among smallholders. In conclusion, the study affirms that well-designed mobile extension platforms have the potential to revolutionize agricultural extension services, especially in resource-constrained rural areas. It recommends that policymakers and development agencies prioritize digital infrastructure development, capacity-building initiatives for digital literacy, and ongoing user feedback mechanisms to enhance system sustainability and scalability. Future research avenues include longitudinal studies to assess long-term impacts, integration with other ICT tools, and exploration of gender-specific barriers to mobile extension adoption. Overall, the findings underscore the transformative potential of mobile technology in advancing inclusive and environmentally sustainable agriculture among smallholder farmers.