AMES, Iowa, Feb. 22 -- Iowa State University issued the following news release: Many Iowa State University students studying agribusiness have seen a harvest hauled to market. Far fewer have witnessed what happens next. "Even if you're familiar with the business side of farming, it's not apparent where crops go. You dump a load at the local co-op elevator, and it's just gone. But it's not just marketing. Grain physically needs to go somewhere," said Bobby Martens, associate professor of econom  more