Corn Matters Published May 9, 2022 In the latest Corn Matters, Minnesota Corn Growers Association District Field Manager Macy Kahler says the association is offering free nitrate testing this year. https://www.rrfn.com/wp-content/uploads/2022/05/050422-MN-Corn-Matters-for-week-of-May-2-Kahler.mp3 Share this: Facebook Twitter LinkedIn