Define NPK fertilisers as fertilisers containing compounds of nitrogen, phosphorus and potassium. (Chemistry only)

In the subtopic Production and uses of NPK fertilisers, this learning objective focuses on define NPK fertilisers as fertilisers containing compounds of nitrogen, phosphorus and potassium. (Chemistry only). Within The Haber process and the use of NPK fertilisers, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include phosphorus, potassium, chemistry only, nitrogen, and NPK fertiliser. NPK fertilisers means fertilisers containing compounds of nitrogen, phosphorus, and potassium. Avoid students often define NPK fertilisers as containing only nitrogen compounds; instead remember that NPK fertilisers contain compounds of nitrogen, phosphorus, and potassium. For exam answers, define NPK fertilisers clearly as those containing nitrogen, phosphorus, and potassium compounds.