关键词: 美国, 农业科技, 创新, 推广

Abstract: As a fundamental requirement for accelerating agriculture development, establishment of an advanced innovation and extension system of agricultural science and technology is a basic task related to national economy and the peoples livelihood. In recent years, China has vigorously applied the policy of developing agriculture through science and education, which has greatly promoted the progress of agriculture. However, due to the imperfect layout of agricultural science and technology system, there is still a gap in agricultural science and technology development between China and the developed countries. The United States is an advanced country in agricultural science and technology. This paper analyzed the legal foundation and organization structure of American agricultural science and technology innovation and extension systems; and summarized their her main characteristics as: sound and perfect agricultural laws and regulations system, the R&D model full play individual advantages, an extension system with strong operability and wide coverage, etc.. These characteristics effectively promoted the development of agricultural science and technology in the United States with high quality. Combining the experience from America, this paper directed at the challenges facing agricultural science and technology development in China; put forward certain suggestions as: strengthening the policy and institution guarantee; optimizing system construction; paying equal attention to R&D and extension, etc., hoping to optimize and perfect the layout of agricultural science and technology system in China.

Key words: the United States, agriculture science and technology, innovation, extension