Definition - What does Drip Irrigation mean?
Drip irrigation is a method of crop irrigation that involves a controlled delivery of water to plants through system of pipes, valves, tubing and emitters. The water is delivered from a source directly to the root zone of individual plants or to the surface of the soil. Water drips constantly onto plants to keep them well watered.
Drip irrigation is also called trickle irrigation.
Safeopedia explains Drip Irrigation
This method of irrigation is used to automate aspects of plant care and to save water by delivering water directly to the plant's roots, as opposed to spraying water and having water miss the area where it is most required, thus wasting it. Drip irrigation is effective for certain types of farming, but it does have drawbacks and limitations. It cannot be used for a lawn, for example. It also requires maintenance and flush outs.