The Canadian charity Farm Radio International says getting farmers and farm science on the air in sub-Saharan Africa can improve the adoption of new and more productive agricultural practices, reports SciDev.Net. A Farm Radio International official says that 80 percent of Ethiopian farmers who listened to a broadcast about how to grow tef followed the suggestion to plant the grain in rows. Particularly effective, according to the charity, are interactive shows that allow farmers to call in with questions to scientists and policymakers. Farm Radio International aids radio stations by providing scripts that can be used on the air, and by training broadcasters.