by BERNARD TOBIN
Kelvin had indeed followed agronomist Paul Sullivan’s advice and applied the nitrogen his soybeans needed after they failed to nodulate. Unfortunately, an application error caused the nitrogen in one field to be spread only on 15-inch strips in the field.
As Kelvin explained to Sullivan, the fertilizer apron on the spreader, which delivers the fertilizer to the spinner, is controlled using the tractor’s hydraulics. The spinner, which spreads the fertilizer across the field, is powered by the PTO. As Kelvin moved from field to field, he would cut power to both the apron and the spinner after finishing a field and then move on to the next field.