Christie Apple, agronomist, says no we don’t have to worry if our sweet corn isn’t knee high late this week. Christie Apple ...

However, shallow fertilizer injection depth, 2x2 starter fertilizer applications and excessively high rates of pre-plant anhydrous and urea applications can all cause fertilizer burn on corn.¹ ...

If applying urea-based fertilizer in a band, they suggest separating it from the seed by at least 2" of soil. Additionally, do not seed-place urea or urea-based fertilizer with corn.

Jumping forward to planting season, Griesheim applied 15N-labeled urea-ammonium-nitrate (UAN) at planting in subsurface bands using 2 x 3 placement, surface dribble, and drag-chain applications at ...