You can't talk about nitrogen management without talking about tillage management. And separating nitrogen management from management of no-till and other tillage systems can be dangerous, according to Alan Sundermeier, an Ohio State University extension educator.

"If you want to double the size of your farm, farm vertically,” says Ray Rawson. The developer of several pieces of zone tillage equipment and a no-till corn and soybean producer from Farwell, Mich., for many years has taken the time to look beneath the soil surface. The result has been higher yields on his own and and many other farms.