Nitrogen Fertilizers
Natural gas accounts for about 85% of the cost of producing ammonia, which in turn drives nitrogen-based fertilizer prices. About 25% of natural gas production goes into fertilizer products.
Phosphorus Fertilizers
Phosphorus fertilizers come from phosphate rock and ore. This is refined into phosphate concentrate, then combined with sulfuric acid to make phosphoric acid. This is then mixed with ammonia to produce phosphate fertilizers.
Potassium Fertilizers
The key ingredient of potassium fertilizers is potash. It is mined and refined, then combined with either chloride or sulphuric acid to make fertilizers.