If ethanol had not driven up the price of corn, most farmers would not have planted anything this spring. As it stands there should be a profit this year for farmers but not to the extent most think. There are a few farmers in my area that go through 1,000 gallons of diesel fuel a day during the spring planting. This is in upstate NY where fields are relatively small. I can't imagine what the farmers in the mid-west go through in a day. The price of most fertilizers has also increased dramatically. If corn were still $4 a bushel like last fall, or even $2.50 a bushel as it was before that, the farmers could not overcome the cost of fuel and fertilizer and the fields would have set idle.
This stands for the dairy, beef, poultry, and pork farms as well. It takes oil/diesel/gas to run the tractors, plant the crops, clean the barns, and feed the animals. Yes, the price of corn that is fed has increased but so have nearly all of the other inputs.
Ethanol may not be the solution but without it there would be hardly any crops and or meat reaching the market at any price.