Carefully weigh the optimum timing and placement of each pound of N used this year. All N fertilizers are effective for supplying crop N needs when properly managed. On soils with large potential for N loss (leaching or denitrification), application close to crop uptake is important to minimize losses. Avoid early applications, especially for products containing the nitrate form of N. Be mindful of the unique properties and management needs of each material. Don't get in a rush and waste valuable N just to get the job done.
Iowa State University
Sawyer, John E., "Nitrogen fertilizer management options" (2001). Integrated Crop Management News. 1938.
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