Orchards like this one in Adams County, PA, and other U.S. farms face worldwide competition for their apples and apple products due to imports. Brad C. Bower/AP hide caption

itoggle caption Brad C. Bower/AP

A man harvests fruits of the Jatropha tree in Taabo, Ivory Coast. Jatropha, which is grown in many parts of the world, has fallen from favor as a diesel fuel substitute. Kambou Sia/AFP/Getty Images hide caption

itoggle caption Kambou Sia/AFP/Getty Images

President Obama and Agriculture Secretary Tom Vilsack (second from right) inspect drought-damaged corn on the McIntosh farm in Missouri Valley, Iowa. Carolyn Kaster/AP hide caption

itoggle caption Carolyn Kaster/AP

Jameson Small uses a late-1800s seeder to plant lettuce at Tuttle farm in Dover, N.H. Small is part of a group of young farmers who are taking care of the land as the owners await a buyer. Jim Cole/AP hide caption

itoggle caption Jim Cole/AP