Extension"s role in adapting and evaluating new technology for farmers

Problems which inhibit successful technology adaptation and evaluation are discussed, and a four-stage approach designed to alleviate many of these problems is outlined: (1) diagnosis of farmers" circumstances and actions in the target area; (2) planning and design of technological adaptation; (3) on-farm testing and verification; and (4) multi-locational field trials and dissemination. Specific extension activities in implementing each of the four stages are identified. A brief concluding section on organizational arrangements suggests that national research and extension departments share staffing, budgetary, and operational responsibilities for on-farm trials.