Adoption of technologies by large number of farmers pave way for agricul-tural development of an area. Various approaches are followed by extension agencies for transmitting new ideas and motivating farmers to adopt them. In the District of Thanjavur, a predomi nantly rice growing area, the production of rice was stepped up from 0.92 million tonnes to 10.6 million tonncs between 1968 and 1971. Three major approa-ches used by the extension agency of the department of agriculture which, among other things, enabled substantial gains in agricultural production in a short time are explained briefly in this article
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