Iowa, an agricultural powerhouse, is a national leader in soybean, corn, pork, beef and ethanol production.

All five areas now face Chinese tariffs, a move that’s expected to cut demand and weaken prices.

“Farmers are feeling a real pinch,” said Heisdorffer, president of the American Soybean Association. “If we can’t get these commodity prices up … we are going to start losing farmers. There’s no way of getting around it.”

This year’s U.S. farm income is forecast to be half of what it was in 2013, primarily driven by falling corn and soybean prices.