n the past decade urea has surpassed and nearly replaced ammonium
nitrate as a fertilizer. This has brought about new questions on
urea and its use.
rea, a white crystalline solid containing 46% nitrogen, is widely
used in the agricultural industry as an animal feed additive and
fertilizer Here we discuss it only as a nitrogen fertilizer.
- Urea can be applied to soil as a solid or solution or to
certain crops as a foliar spray.
- Urea usage involves little or no fire or explosion hazard.
- Urea's high analysis, 46% N, helps reduce handling, storage
and transportation costs over other dry N forms.
- Urea manufacture releases few pollutants to the
- Urea, when properly applied, results in crop yield increases
equal to other forms of nitrogen.