Granular grade is screen sized for uniform blending with all other dry fertilizer products, including urea, ammonium nitrate, triple superphosphate, monoammonium and diammonium phosphate, and potash.
Granular grade can also be direct-applied.
Standard grade is used as a raw material for ammoniated fertilizers or dissolved in liquid fertilizers. It is also suitable for direct application by ground and air, or through irrigation systems. Standard grade is specially treated to minimize fugitive dust and fines. The product is applied directly to farmland, mixed with other dry bulk fertilizers, dissolved into liquid fertilizers, applied through irrigation systems, or used in ammoniated fertilizers. Natural gas is used to make ammonia and molten sulfur is used to make sulfuric acid.