Charging farmers a road-use tax on diesel fuel used for off-road field work and harvesting would be inequitable and is the wrong way for Iowa to make up its growing shortfall in funding for road and bridge repairs, said Craig Hill, Iowa Farm Bureau Federation (IFBF) president.

"For a farmer to think that when they are tilling or working in the fields or harvesting crops they’re paying a road tax is quite unfair," Hill said recently during the Iowa...