UAN (urea-ammonium nitrate) solution is a liquid nitrogen fertilizer containing 28% or 32% nitrogen (UAN-28 and UAN-32). It is produced by blending urea and ammonium nitrate in water. UAN is the most flexible nitrogen fertilizer — it can be applied pre-plant, side-dressed with a coulter applicator at V4-V6, or dribbled on as a foliar feed. It is priced at $0.28–$0.36/gallon (UAN-32) in 2026.
| Property | UAN-28 | UAN-32 |
|---|---|---|
| % Nitrogen | 28% | 32% |
| 2026 price (approx.) | $0.24–$0.30/gal | $0.28–$0.36/gal |
| Salting-out temperature | -10°F | 32°F (freezes sooner) |
| Best regions | Northern states (freeze risk) | Corn Belt, South |
| Cost per lb N | $0.49–$0.61 | $0.50–$0.64 |
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