The ratio of extension workers to farmers in Nigeria has been estimated at 1:10,000, making it extremely difficult for the average farmer to access extension services. To address the problem, CRS partnered with HNI (now Viamo) and Airtel Nigeria to develop and roll out the 321-messaging service. You can access information on sources of certified improved cassava stems, characteristics of cassava varieties, how to establish and manage cassava fields, weed control in cassava fields and more by dialing 321 with your Airtel SIM Card and follow the voice prompts. The 321 service provides information on agriculture (including cassava), health and other areas.