Corn is certainly the king of crops in Iowa. In 2005 as most years, Iowa led the nation with approximately 19% of the nation’s total corn crop.   Iowa corn farmers grew almost 2.2 billion bushels of corn on 12.5million acres of land or averaged nearly 180 bushels per acre.    Over 55% of Iowa’s corn goes to foreign markets. Corn hasbeen the dominant crop in Iowa for more than 150 years!    Iowa has a growing season that is long enough and warm enough to suit corn production.  Iowa usually receives enough rain tosupport healthy corn production. Iowa has deep, rich soils that suit corn's needs.  Iowa also produces lots of livestockwhose waste includes nutrients that are key to fertilizing fields for better corn production.