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Spray Recovery From Nozzles Designed to Reduce Drift

Published online by Cambridge University Press:  12 June 2017

L. F. Bouse
Affiliation:
Agr. Res. Serv., U.S. Dep. of Agr., Texas A&M Univ., College Station, TX 77843
J. B. Carlton
Affiliation:
Texas Agr. Exp. Sta., Texas A&M Univ., College Station, TX 77843
M. G. Merkle
Affiliation:
Texas Agr. Exp. Sta., Texas A&M Univ., College Station, TX 77843

Abstract

Low pressure and reduced pressure fan and reduced pressure hollow cone nozzles were compared to conventional fan and hollow cone nozzles to determine their potential for reducing spray drift. Other comparisons included two different spray pressures for a low pressure fan nozzle, low and reduced pressure fan nozzles versus air-aspirating foam nozzles, low pressure versus reduced pressure fan nozzles, and reduced pressure hollow cone nozzles versus reduced pressure fan nozzles. Spray recoveries within 36 m downwind of the spray release point were significantly greater for the low pressure and reduced pressure fan and reduced pressure hollow cone nozzles than for the conventional fan and hollow cone nozzles. An air-aspirating nozzle producing spray without foaming adjuvant resulted in significantly greater spray recovery than a low pressure fan nozzle. The recovery from a reduced pressure fan nozzle having a rated flow of 12.6 cm3/s was significantly greater than that from a low pressure fan nozzle.

Type
Research Article
Copyright
Copyright © 1976 by the Weed Science Society of America 

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References

Literature Cited

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