Corn remains king in Iowa rations when it comes to feeding livestock.

According to the USDA, corn acreage is expected to rise 2.9 million acres to 92 million, the largest since the 2016 planting season. Soybeans are expected to fall 4.2 million acres, to 85 million acres in 2019.

“We’re expecting more corn to be planted this year and less soybeans due to the trade dispute between China and the United States,” said Chad Hart, economist with Iowa State University Extension...