Effect of Fertilisers

Intensive farming can damage the environment.

1.  Fertilisers containing plant nutrients are sprayed onto fields

2. Plants grow faster and boost crop yields.

3. Rain means may wash nutrients from the fields and into rivers and lakes (this is called run-off).

4. Eutrophication (hyper-nutirtion from fertisiler pollution) occurs which can kill almost everything living.

- Algae grows fast using up lots of oxygen and blocking sunlight

- Plants begin to die providing food for microbes

- Microbes increase the competition for oxygen

- Water becomes de-oxygenated causing aquatic life to die