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corn belt
The Corn Belt is a region of the Midwestern United States where corn (maize) has, since the 1850s, been the predominant crop, replacing the native tall grasses. By 1950, 99% of the corn was grown from hybrids. Most corn is fed to livestock, especially hogs and poultry. In recent decades soybeans have grown in importance. The U.S. produces 40% of the world crop.〔Smith, C. Wayne., Javier Betrán, and E. C. A. Runge. ''Corn: Origin, History, Technology, and Production''. Hoboken, NJ: John Wiley, 2004. page 4. Print〕
==Geography==
Geographic definitions of the region vary. Typically, it is defined to include: Iowa, Illinois, Indiana, southern Michigan, western Ohio, eastern Nebraska, eastern Kansas, southern Minnesota and parts of Missouri.〔Hart (1986)〕 As of 2008, the top four corn-producing states were Iowa, Illinois, Nebraska and Minnesota, together accounting for more than half of the corn grown in the United States.〔(USDA State Fact sheets )〕 The Corn Belt also sometimes is defined to include parts of South Dakota, North Dakota, Indiana, Ohio, Wisconsin, Michigan, and Kentucky.〔(U.S. Department of Agriculture )〕 The region is characterized by relatively level land and deep, fertile soils, high in organic matter.〔(Corn Belt ), Encyclopædia Britannica Online〕
More generally "Corn Belt" represents the most intensively agricultural region of the Midwest, connoting a lifestyle based on ownership of family farms, with supporting small towns and powerful farm organizations that lobbied to obtain higher prices.〔John Mark Hansen, ''Gaining access: Congress and the farm lobby, 1919-1981'' (1991) p, 138〕〔Thomas F. McIlwraith and Edward K. Muller, ''North America: the historical geography of a changing continent'' (2001) p, 186〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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