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Agricultural extension is a general term meaning the application of scientific research and new knowledge to agricultural practices through farmer education. The field of 'extension' now encompasses a wider range of communication and learning activities organized for rural people by educators from different disciplines, including agriculture, agricultural marketing, health, and business studies. Extension practitioners can be found throughout the world, usually working for government agencies. They are represented by several professional organizations, networks and extension journals. Agricultural extension agencies in developing countries receive large amounts of support from international development organizations such as the World Bank and the Food and Agriculture Organization of the United Nations. == Extension terminology == Extension began in Dublin, Ireland in 1847 with Lord Clarendon's itinerant instructors during the great famine.〔http://www.fao.org/docrep/w5830e/w5830e03.htm〕 It expanded in Germany in the 1850s, though the itinerant agricultural teachers ''Wanderlehrer'' and later in the USA via the cooperative extension system authorized by the Smith-Lever Act in 1914. The term was later adopted in the United States of America, while in Britain it was replaced with "advisory service" in the 20th century. A number of other terms are used in different parts of the world to describe the same or similar concept: * Arabic: ''Al-Ershad'' (“guidance”) * Dutch: 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Agricultural extension」の詳細全文を読む スポンサード リンク
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