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An Improved Mixing Chamber for Variable-Dosage Sprayers

Published online by Cambridge University Press:  12 June 2017

Lyle M. Carter  and
John H. Miller
Lyle M. Carter
Affiliation:
Agricultural Engineering Research Division, and Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Shafter, California
John H. Miller
Affiliation:
Agricultural Engineering Research Division, and Crops Research Division, Agr. Res. Serv., U. S. Dep. of Agr., Shafter, California
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Abstract

A variable-dosage sprayer system with a toroidal mixing chamber was constructed and used successfully in evaluation of equipment and herbicides for 2 years at the U. S. Cotton Research Station, Shafter, California. The primary advantage of this system compared to other systems is that the dilution rate is the same as predicted by theory over a wide range of conditions. Therefore, the rate of dilution can be calculated for different combinations of nozzles, or metering orifices, pressures, and spray rates without the need for direct calibration. Since the inside of the chamber is visible, some application errors are avoided and others detected that are not known with other systems. The system should be adaptable to a wide range of plot sizes and half-dosage distances by changing the volume of the toroid, the limiting factor being the availability of proper size propellers and motor.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 6 , November 1970 , pp. 717 - 720
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Brunskill, R. T. 1957. A variable dosage sprayer for agricultural use. J. of Agr. Eng. Res. 2:135–140.Google Scholar
2. Cialone, J. C. and Bayer, G. 1962. A logarithmic sprayer for small plots. Proc. No. East Weed Contr. Conf. 16:77–80.Google Scholar
3. Cialone, J. C., Bayer, G. and Davis, D. W. 1963. A small logarithmic sprayer: some modifications. Proc. No. East Weed Contr. Conf. 17:71–72.Google Scholar
4. Clarke, G. S. and Ross, A. A. 1964. A small-scale variable dosage (logarithmic sprayer). Weed Res. 4:249–255.CrossRefGoogle Scholar
5. Day, B. E. 1958. A simplified logarithmic plot sprayer. Weeds 6:441–446.CrossRefGoogle Scholar
6. Deodolph, R. R., Dashman, C. W., and Stark, F. C. 1960. An exponential sprayer for experimental work. Am. Soc. Hort. Sci. Proc. 75:785–788.Google Scholar
7. Fryer, J. D. 1956. A small-scale logarithmic sprayer. British Weed Contr. Conf. Proc. 3:585–590.Google Scholar
8. Hartley, G. S., Pfeiffer, R. K., and Brunskill, R. T. 1956. The Chesterford logarithmic sprayer. British Weed Contr. Conf. Proc. 3:571–584.Google Scholar
9. Hodgson, J. M. 1963. A portable variable-rate sprayer for plot use. U.S. Dep. Agr., Res. Serv. Special Rept. ARS 34–48. 12 p.CrossRefGoogle Scholar
10. Leasure, J. K. 1959. A logarithmic-concentration sprayer for small plot use. Weeds 7:91–97.CrossRefGoogle Scholar
11. Leasure, J. K. 1966. A logarithmic step sprayer. Down to Earth 22(1):2, 32.Google Scholar
12. Leasure, J. K. and Falkenstein, W. J. 1958. A logarithmic concentration sprayer for small plot use. Down to Earth 14(3):2–5.Google Scholar
13. Pfeiffer, R., Brunskill, R. T., and Hartley, G. S. 1955. A variable dosage sprayer for agricultural experiments. Nature 176:472–473.CrossRefGoogle Scholar
14. Sweetman, I. C. 1959. A simple conversion of a standard precision sprayer for logarithmic spraying. New Zealand Weed Contr. Conf. Proc. 12:11–16.CrossRefGoogle Scholar
15. Turner, N. J. 1965. A small plot logarithmic dosage sprayer with an internally located concentrate container. Boyce Thompson Inst. Contrib. 23(1):21–22.Google Scholar
16. Wrigley, G. 1957. On tour with a logarithmic sprayer. World Crops 9:321–324.Google Scholar
17. Yates, W. E. and Ashton, F. M. 1960. Logarithmic Dosage Sprayer. Agr. Eng. 41:436–438.Google Scholar