Intensive wheat management requires attention to details, from planting through harvest. Perhaps most critical is stand establishment. While no-tilling wheat into corn stubble presents a range of problems in depth control and residue management, these problems do not minimize the importance of calibration.
Just as no two drills are manufactured alike, seed rarely is produced in uniform size, nor do individual metering cups deliver the same seed quantities. A few hours of attention to calibration at the start of fall planting will help producers control seed costs and achieve more desirable, uniform stands and better yields.
Shearer, S. A.; McNeill, Samuel G.; Watkins, G. A.; and Higgins, Stephen F., "Grain Drill Calibration Procedures for Winter Wheat" (2000). Agricultural Engineering Extension Publications. 12.