46-0-0 Urea is the most concentrated dry source of nitrogen. Urea (CO(NH)2) is the most widely used nitrogen (N) source in the world. Lower production costs, fewer environmental issues and lower storage and transportation costs in relation to its high N content (46%) have resulted in urea becoming a leading solid N source.

Urea is the commercial synthetic acid amide of carbonic acid and it shall contain not less than forty five percent (45%) nitrogen.  (AAPFCO)