CHEMICAL INDUSTRY
Urea is a raw material for the manufacture of two main classes of materials:urea-formaldehyde resinsand urea-melamine-formaldehyde used in marine-plywood.
AGRICULTUREMore than 9O% of world industrial production of urea is destined for useas a nitrogen-release fertilizer.Urea has the highest nitrogen con-tent of all solid nitrogenous fertilizersin common use.Therefore, it has the lowest transpor-tation costs per unit of nitrogen nutri-ent.