China’s food demand is changing as the country’s economy evolves and millions of people move from rural to urban areas. Those changes, which are expected to boost demand for higher value agricultural products, will be major factors in the farm economics of Iowa and the entire United States in the coming years, according to Dave Miller, Iowa Farm Bureau Federation (IFBF) director of research and commodity services.

"As farmers, we need to know what our customers need, and we need to sync our production up to those needs,"...