A farmer harvests wheat recently along Coldwater Creek Road. Producers began taking off wheat in earnest about six days ago with the harvest about 50 percent complete, said Chris Gibbs, executive director of the Mercer County Farm Service Agency. Yields have been good, ranging between 70 to 100 bushels per acre, he said; the average yield is between 80-85. Mercer County farmers planted roughly 20,000 acres of wheat this year. The amount of wheat planted in the county has decreased during the last 15 years because it is more profitable to grow corn and soybeans, Gibbs said.