Agricultural industries are the major users of ammonia, representing nearly 80% of all ammonia produced in the United States.

Ammonia is most commonly used as a fertilizer and applied directly to the soil from tanks containing the liquefied gas.

Ammonia is a very valuable source of nitrogen that is essential for plant growth.

Ammonia is used in the production of liquid fertilizer solutions that consist of ammonia, ammonium nitrate, urea and aqua ammonia.

The fertilizer industry also uses ammonia to produce ammonium and nitrate salts.

Ammonia and urea are used as a source of protein in livestock feeds for animals such as cattle, sheep and goats.

Ammonia is used as a pre-harvest cotton defoliant, an anti-fungal agent on certain fruits and a preservative for the storage of high-moisture corn. 

The chemical industries most important use of ammonia is to produce nitric acid (HNO3).

Ammonia is oxidized with the aid of a catalyst and platinum with a small percentage of rhodium that is made to react with water to form nitric acid.

Nitric acid treated with ammonia forms ammonium nitrate, a fertilizer and a constituent of many explosives.

Ammonia is used by the ammonia-soda industry for producing soda ash.

Ammonia is used in the manufacture of certain dyes and applied in the dyeing and scouring of cotton, wool and silk.  

The pharmaceutical industry uses ammonia in the manufacture of certain products such as sulfa drugs, vitamins and cosmetics.

The petroleum industry utilizes ammonia to neutralize acid constituents of crude oil and to protect equipment from corrosion.

The mining industry uses ammonia to extract certain metals such as copper, nickel and molybdenum from their ores.

The rubber industry uses ammonia to prevent premature coagulation by stabilizing natural and synthetic latex during transportation from plantation to factory.

The pulp and paper industry use ammonia for pulping wood and as a casein dispersant in the coating of paper.

The food and beverage industry use ammonia as a nitrogen source needed by yeast and microorganisms.  

The textile industry uses ammonia in the manufacture of synthetic fibers such as nylon and rayon.

The plastics industry uses ammonia in the manufacture of phenolics and polyurethanes.  

Ammonia is used by the leather industry as a curing agent, as a slime and mold preventative in tanning liquors and as a protective agent for leathers and furs in storage.