The total production of corn in the US for the year 2012–13 is reported to be 11.291 billion bushels of which the major use is for manufacture of ethanol and its co-product (Distillers’ Dried Grains with Solubles) accounting for 40% (29% + 11%) or 4,450 million bushels (3,229 + 1,221). The other uses are given in the table.
The final estimate of corn production for the years 1950 to 1959 in the United States is given as some three billion bushels and in recent years, some nine billion bushels are produced each year. Corn growth is dominated by west north central Iowa and east central Illinois. In 2011, the national average production was 147 bushels, and reported to be 20 bushels more than the yield in 2002. Based on a national contest in 2011 when an average of 300 bushels per acre was achieved others are sure to follow suit which result in a yield of 300 bushels per acre by 2030 from the same extent land holdings under corn.
