Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-10T11:56:49.243Z Has data issue: false hasContentIssue false
  • English
  • Français

Factors Affecting the Loss of EPTC Applied Through a Sprinkler

Published online by Cambridge University Press:  12 June 2017

Alex G. Ogg Jr.
Alex G. Ogg Jr.*
Affiliation:
USDA, Agric. Res. Serv., 215 Johnson Hall, Washington State Univ., Pullman, WA 99164-6421
Get access Rights & Permissions [Opens in a new window]

Abstract

Increasing the air temperature from 20 to 32 C, the water temperature from 21 to 30 C, and the wind velocity from 0 to 8 km/h increased the loss of EPTC (S-ethyl dipropyl carbamothioate) from water applied through a sprinkler by 24 to 138%. Decreasing the water temperature from 21 to 10 C decreased the loss of EPTC by 35 to 50%. Decreasing the water pressure or nozzle size by 33% or doubling the herbicide concentration did not affect the percentage of EPTC lost.

Keywords

Irrigationvolatilizationair temperaturewater temperaturewindpressurenozzle sizeherbicide concentration
Type
Research
Information
Weed Technology , Volume 1 , Issue 2 , April 1987 , pp. 162 - 164
Copyright
Copyright © 1987 by the Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Cliath, M. M., Spencer, W. F., Farmer, W. J., Shoup, T. D., and Grover, R. 1980. Volatilization of S-ethyl N,N-dipropylthiocarbamate from water and wet soil during and after flood irrigation of an alfalfa field. J. Agric. Food Chem. 28:610–613.Google Scholar
2. Dawson, J. H. 1963. Development of barnyardgrass seedlings and their response to EPTC. Weeds 11:60–67.Google Scholar
3. Frost, K. R., and Schwalen, H. C. 1955. Sprinkler evaporation losses. Agric. Eng. 36:526–528.Google Scholar
4. Ogg, A. G. Jr. 1976. Application of herbicides through sprinklers. Proc. West. Soc. Weed Sci. 29:59–73.Google Scholar
5. Ogg, A. G. Jr. 1986. Applying herbicides in irrigation water – a review. Crop Prot. 5:53–65.Google Scholar
6. Steiner, J. L., Kanemasu, E. T., and Clark, R. N. 1983. Spray losses and partitioning of water under a center-pivot sprinkler system. Trans. ASAE 26:1128–1134.Google Scholar
7. Weed Science Society of America. 1983. Herbicide Handbook, 5th ed. Champaign, IL.Google Scholar
8. Wiese, A. F. 1981. Research and experience with herbigation in west Texas. Pages 26–30 in Young, J. R., ed. Proc. National Symp. on Chemigation, Univ. GA. Rural Dev. Cent., Tifton, GA.Google Scholar