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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Sanborn Field ： ウィキペディア英語版 Sanborn Field Sanborn Field is an agricultural experiment field, located on the University of Missouri campus. Established in 1888, Sanborn Field was the first facility in the United States intended to measure erosion and run-off for differing crops and agricultural practices. Work at Sanborn Field was influential in the establishment of soil conservation policy in the United States. Research on soil properties at Sanborn began with manure fertilizer and shifted to chemical fertilizer in 1914. Experiments have also shown the value of crop rotation, while other experiments focused on the recovery of exhausted soils. The fields, once in a rural area, are now surrounded by built-up portions of Columbia. The plots measure by . Aureomycin, the first tetracycline to be identified, was discovered in a sample of soil collected from plot 23 of Sanborn field in 1945.〔(【引用サイトリンク】url=http://umcspace.missouri.edu/historic/buildings/Sanborn/files/aueromycin.pdf )〕 ==References== 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「Sanborn Field」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.