Airblast spray applications were made using different combinations of the nozzle disc-core sizes, number ofnozzles, and ground speed. Spray targets were positioned at several spatial locations in open space and deposition wasdetermined by copper colorimetry. Overall, deposition efficiency increased as speed increased or core size decreased.However, for low-volume applications, the use of fewer smaller nozzles at lower speeds was more effective than usingmore nozzles at higher speeds. The trend was opposite for larger nozzles and high-volume rates.
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Masoud Salyani (2000) studied this question.