Fertilisers
Fertilisers
- Fertilisers are added to soil to help plants grow.
- Ammonium salts and nitrates are common fertilisers.
- NPK fertilisers supply the three elements plants need most:
- N — nitrogen,
- P — phosphorus,
- K — potassium.
Practice
The three elements in an NPK fertiliser are:
NPK = nitrogen (N), phosphorus (P) and potassium (K) — the elements plants need most.
Practice
Which are common fertilisers?
Ammonium salts and nitrates supply nitrogen to the soil.
Practice
Fertilisers are added to soil to help plants grow.
Fertilisers replace nutrients in the soil so crops grow better.
You've got it
Key idea
- fertilisers help plants grow; ammonium salts and nitrates are common
- NPK = Nitrogen, Phosphorus, K (potassium)
- these are the three elements plants need most