Widespread dryness is limiting in-season fertilizer applications.

University of Minnesota Extension soil fertility specialist Daniel Kaiser says some farmers planning to side-dress are unsure of when and what to apply.

“Mainly because there’s some risk, particularly with dry conditions, for volatility of ammonia off of urea and urea-based fertilizers. Certainly dry urea is going to be the worst in terms of overall risk.”

He tells Brownfield because UAN is banded with 50 percent urea, there’s a lower chance for loss.

…