I owa is the center of the world’s most productive corn and soybean region. Along with Illinois and Indiana to the east, Minnesota and South Dakota to the north, Nebraska to the west, and Missouri to the south, this region produces an abundance of low-cost feed that when used by the highly efficient U.S. meat and dairy sectors provides consumers with low-cost food. The traditional view of agriculture in this region is one in which domestically produced grain is fed to domestically produced livestock that is slaughtered for domestic consumption. The surplus grain is then exported to support domestic livestock sectors in other countries.
Babcock, Bruce A.
"Processing or Exports: Which Path for U.S. Grain?,"
Iowa Ag Review: Vol. 10
, Article 1.
Available at: http://lib.dr.iastate.edu/iowaagreview/vol10/iss3/1