Based on principle, there are two main types of drip irrigation. They are
- Sub-surface drip irrigation where water is applied below the soil surface through narrow tubes. Narrow plastic tubes are buried in the soil at a depth between 20 and 50 cm, deep enough so as not to interfere with normal tillage or traffic.
- Surface drip irrigation where water is applied directly to the soil surface. This is a more common method and uses a very large range of drip emitter devices.