From the farm: Crop minerals MORNING SHOW Posted: Jun 25, 2020 / 08:02 AM CDT / Updated: Jun 25, 2020 / 08:02 AM CDT CHAMPAIGN COUNTY, Ill. (WCIA) —Farmers will feed their corn crop a healthy bag of groceries of nitrogen, potash, and phosphate. But just like people, other minerals are needed. Stu Ellis takes a look at trace elements needed in a corn crop.