By Scout Nelson
Nitrogen fertilizer is one of the largest expenses for Nebraska corn producers. In 2025, limited availability of UAN (urea ammonium nitrate) has made it more important than ever to use nitrogen wisely. Here are ten ways to reduce nitrogen costs while keeping yields strong.
Follow the 4Rs – Use the Right Rate, Time, Source, and Place. UNL’s Nitrogen Calculator helps determine accurate rates, and splitting applications improves timing and efficiency.
Use Precision Agriculture – Tools like soil mapping and crop sensors help apply nitrogen only where needed, saving fertilizer and money.
Split Applications – Apply part of the nitrogen before planting and the rest during peak growth stages like V6 to V12.
Plant Cover Crops – Winter cover crops absorb leftover nitrogen and release it later, reducing the need for synthetic fertilizers.
Use Enhanced Efficiency Fertilizers (EEFs) – Products like nitrification inhibitors and polymer-coated urea reduce nitrogen loss and improve availability.
- Apply Manure or Organic Amendments – These natural sources supply nitrogen and improve soil health. Test nutrient content before use.
- Test Soil and Crops – Use soil and canopy tests to assess nitrogen needs. Test irrigation water for added nitrogen credit.
- Consider Residual Nitrogen – Account for leftover nitrogen from previous crops and soil mineralization before applying more.
- Reduce Nitrogen Losses – Incorporate fertilizer into soil and avoid applying it before heavy rains.
- Use UNL Tools and Support – “The UNL Nitrogen Calculator can help determine the economically optimal nitrogen rate (EONR).” Work with local extension experts for field-specific guidance.
These tips help manage costs, increase nitrogen use efficiency, and improve sustainability.
Photo Credit:gettyimages-dszc
Categories: Nebraska, Crops, Corn