SciDevNet: Getting farmers and farm science on air in Sub-Saharan Africa can vastly improve how agricultural knowledge is shared and taken up, says Kevin Perkins, executive director of Canadian charity Farm Radio International, in this audio interview. In Ethiopia, for example, 80 per cent of those who listened to a show on the benefits of planting the grain tef in rows started using this technique. Farm Radio International supports radio stations and farming communities in countries across Sub-Saharan Africa...