Description
Urea-containing fertilizers applied in contact with the seed can cause significant damage and decrease seedling emergence, affecting final plant population. Release of free ammonia from urea also can slow root growth. Leaves that do not unroll are a typical symptom caused by the presence of biuret in urea-containing fertilizers.
Diagnostic image
Photo credits
KSU Corn Production Problems
Production period
Preharvest
Crop type