Source: Purdue University

Jim Camberato, RL (Bob) Nielsen, and Brad Joern, Agronomy Department, Purdue University, said, nitrogen fertilizer costs remain volatile but continue to be one of the most expensive variable costs for corn. Applying "more than enough N" is no longer cheap "insurance" as it once was many years ago.

High N fertilizer costs "should encourage growers to critically evaluate their N fertility program, including application rate, fertilizer material, and timing."

For more, click here.