Drip irrigation or "localized irrigation" is an irrigation method that slowly delivers water to the plants. For the calculation it is necessary to know the distance between the driplines, the distance on the wing and the effective flow rate of the drippers in the conditions of use. Knowing the flow rate of the system can be useful for understanding the volumes of water supplied starting from the opening time of the system. Remember that 1 mm is equivalent to one liter per square meter or 10 cubic meters of water per hectare.