Anhydrous ammonia has been a familiar product to American farmers for nearly 70 years — since munitions plants using large amounts of nitrogen were converted to peacetime production after World War II.

 

It's almost universally used to fertilize area corn fields, either before planting or within one month after planting, according to experts. Because soybeans can access nitrogen on their own, anhydrous is typically not applied to soybean fields, though agronomists continue to explore the possibility that anhydrous application could increase bean yields.

 

Anhydrous also has a variety of industrial uses in power plants and chemical manufacturing. And it's one of the oldest commercial refrigerants in the world. Meanwhile, methamphetamine producers use anhydrous in the production of that illegal synthetic stimulant.

 

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