What is boom irrigation system?

A boom irrigation system is a collection of pipes with nozzles that can actually move over the plants while watering them. An overhead rail or a cart moving down an aisle is used to make arrangement for this system. A trailing hose supplies water and is powered by a battery or electric supply. The nozzles are spaced 12 to 15 inches apart and can deliver water @ 0.1 to 0.8 gallons per minute with an average pressure of 15psi.