Robb Ewoldt, along with his wife, Jennifer, and teenage sons, Alex and Isaac, grows corn and soybeans in eastern Iowa, just three miles north of the Mississippi River. He farms 2,000 acres with a main goal always in mind.

Adam Chappell remembers when he decided to remove two elements from his farm’s periodic table. Until 2015, the fourth-generation Arkansas no-tiller and 2022 Responsible Nutrient Management Practitioners Award recipient had been purchasing the usual rates of phosphorus (P) and potassium (K) on his family land outside of Cotton Plant, Ark., where he farms with his brother, Seth.