This year’s “Ag in the City” is Friday and Saturday in Knoxville, and is an excellent opportunity for Marion County residents to learn about agriculture while enjoying food, games and more.  That’s according to Larry Rowley, who is one of the committee members heading up the event.  He says some of the events include farm exhibits, farm machinery and antique tractor displays, pony rides, a petting zoo, and a goat-milking contest between the mayors of Knoxville and Pella on Friday, among other events.