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Spray Droplet Size for Water and Paraffinic Oil Applied at Ultralow Volume

Published online by Cambridge University Press:  12 June 2017

James E. Hanks  and
Chester G. McWhorter
James E. Hanks
Affiliation:
Applic. Tech. Res. Unit, Agric. Res. Serv., U.S. Dep. Agric, Stoneville, MS 38776
Chester G. McWhorter
Affiliation:
Applic. Tech. Res. Unit, Agric. Res. Serv., U.S. Dep. Agric, Stoneville, MS 38776
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Abstract

Spray droplet size of water and paraffinic oil was affected by air pressure, nozzle type, and liquid flow rate when applied with an ultralow volume (ULV), air-assist sprayer. Volume median diameters of water were generally larger than oil at constant air pressure and liquid flow rate. Droplet size decreased as air pressure increased, but increased as liquid flow rate increased. Volume median diameters of water droplets ranged from 41 to 838 μm and from 16 to 457 μm with oil when atomized at air pressures ranging from 14 to 84 kPa. Relative spans ranged from 1.2 to 18.0 and 2.0 to 7.2 for water and oil, respectively.

Keywords

Air-assist sprayercarrierdiluentspray particlespray volume
Type
Feature
Information
Weed Technology , Volume 7 , Issue 4 , December 1993 , pp. 799 - 807
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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