Water use efficiency has typically been a priority for produce growers in the United States, but with recently diminishing water resources due to drought conditions and groundwater depletion, there has been a renewed urgency to improve water use efficiency in irrigation systems. An irrigation system’s uniformity of water distribution or distribution uniformity (DU) is a key measurement of a system’s water use efficiency. If water is not distributed evenly or uniformly on a field, areas receiving less acre-feet of water will have poorer plant health and reduced crop yields or to avoid reduced yields, the system must over-irrigate to compensate for unequal distribution.

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