The National Farmers Union (NFU) won’t support the U.S. Department of Agriculture’s pro­­posal to create a second beef checkoff, casting doubt on whether the plan has any chance to succeed.

"We only want one checkoff program in the end," NFU Senior Vice President Chandler Goule said recently at the National Association of Farm Broadcasting con­­vention. "Having two checkoffs is just too difficult to sell in the...