Using appropriate, research-based, agricultural technologies to promote food security is a major priority for many developing nations. Since farmers differ in their socioeconomic backgrounds, academic levels, learning needs and problems, these technologies must be communicated to them using proven extension education principles and appropriate teaching methods. Seven principles and five technology characteristics related to the transfer and adoption of a new innovation are discussed, and examples given of what could happen when they are observed or violated. To be successful in technology transfer, extension personnel must understand farmers' learning needs,
problems, priorities, and opportunities as well as the and economic barriers to adoption.