Information and communication technologies (ICTs) are generating substantial interest from aid donors and development practitioners, including as tools for agricultural extension. However, empirical evidence of the impact of ICT-enabled extension on farmers’ uptake of introduced technologies remains scarce. This four-year study evaluates an ICT-enabled extension project in Senegal using radio and mobile phone services to encourage rural smallholder farmers’ use of certified improved seeds and organic and inorganic fertilizers across Senegal. Data were collected using large-scale annual surveys in six regions over four years as well as focus groups. The findings suggest that, in general, the forms and format of ICT-enabled extension services deployed failed to significantly contribute to the adoption of promoted technologies. Personal connections to participatory farm trials were consistently associated with adoption, and phone-based voice messaging appears to have potential to increase technology uptake. Gender-based disparities in engagement with ICT services and Senegal’s poorly developed systems for producing and distributing quality seeds emerged as key factors limiting the effectiveness of this project. These findings raise concerns about the equity and effectiveness of ICT-enabled extension in promoting agricultural inputs in contexts like Senegal and have important implications for similar efforts in other countries.

信息和通信技术（ICT）正在引起援助捐助者和发展从业者的极大兴趣，包括作为农业推广工具。然而，关于 ICT 支持的推广对农民采用引进技术的影响的经验证据仍然很少。这项为期四年的研究评估了塞内加尔使用无线电和移动电话服务支持 ICT 的推广项目，以鼓励塞内加尔各地的农村小农使用经过认证的改良种子以及有机和无机肥料。数据是在四年内在六个地区以及焦点小组中使用大规模年度调查收集的。调查结果表明，总体而言，部署的基于 ICT 的推广服务的形式和格式未能显着促进推广技术的采用。与参与式农场试验的个人联系始终与采用相关，基于电话的语音消息似乎有可能增加技术的采用。在参与 ICT 服务方面的性别差异以及塞内加尔生产和分发优质种子的系统不完善，成为限制该项目有效性的关键因素。这些调查结果引发了人们对在塞内加尔等地促进农业投入的信息通信技术推广的公平性和有效性的担忧，并对其他国家的类似努力具有重要意义。在参与 ICT 服务方面的性别差异以及塞内加尔生产和分发优质种子的系统不完善，成为限制该项目有效性的关键因素。这些调查结果引发了人们对在塞内加尔等地促进农业投入的信息通信技术推广的公平性和有效性的担忧，并对其他国家的类似努力具有重要意义。在参与 ICT 服务方面的性别差异以及塞内加尔生产和分发优质种子的系统不完善，成为限制该项目有效性的关键因素。这些调查结果引发了人们对在塞内加尔等地促进农业投入的信息通信技术推广的公平性和有效性的担忧，并对其他国家的类似努力具有重要意义。