Chemistry GCSE
NPK fertilisers
What NPK fertilisers means in Chemistry GCSE, as defined for AQA.
Definitions of NPK fertilisers
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Reference: AQA
Fertilisers that supply nitrogen, phosphorus and potassium, with the potassium coming from mined soluble potassium salts.
Formulations of various salts containing appropriate percentages of the elements nitrogen, phosphorus and potassium.
Topics that use NPK fertilisers
- Production and uses of NPK fertilisers (AQA GCSE)
Related terms
- Ammonia as a feedstock
- Catalytic oxidation
- Fertiliser specification and quality control
- Formulation
- Industrial versus laboratory processes
- Integrated industrial chemistry
- Neutralisation and salt formation
- Salt formation from acids
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