Excerpt from the report Summary: Corn, soybeans, and sorghum make up about a third of all U.S. crop receipts. Corn, soybeans, and sorghum also represent major crops produced by specialized feed grain farms. More than 80 percent of commercial feed grain farmers, defined as those with annual sales of $50,000 or more and for whom farming was their primary occupation, realized positive incomes over the 1987-91 period. The profitability of commercial feed grain farms, measured by return on assets, exceeded that of commercial producers of small grains (oats, wheat, barley), beef, and dairy, matched that of commercial hog producers, and was less than that of commercial farms producing cotton and rice over the 1987-91 period. Nearly three-fourths of the commercial feed grain farms are in the Midwest, and they produce 70 percent of U.S. corn, 78 percent of U.S. soybeans, and 33 percent of U.S. sorghum.