农业技术扩散的理论主要有框架理论、沟通理论、农户行为改变理论和技术创新扩散理论。
The paper analyzes the frame structure theory, the communication theory, the behavior alternation theory in products, and theory of the agricultural innovation and technology diffusion.
农业技术从发源地中心向四周扩散，因为它能比狩猎采集养活更多的人。
Farming spread from its original cores because it could support more people than hunting and gathering.
研究农户技术采用行为，对于解决农业技术转化与扩散问题具有重要意义。
The study of peasant household's technique application behavior is significant in solving the problems of agricultural technology transformation and spread.
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