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Factors Affecting the Loss of EPTC Applied Through a Sprinkler

Published online by Cambridge University Press:  12 June 2017

Alex G. Ogg Jr.*
Affiliation:
USDA, Agric. Res. Serv., 215 Johnson Hall, Washington State Univ., Pullman, WA 99164-6421

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.

Type
Research
Copyright
Copyright © 1987 by the Weed Science Society of America 

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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. 28:610613.Google Scholar
2. Dawson, J. H. 1963. Development of barnyardgrass seedlings and their response to EPTC. Weeds 11:6067.Google Scholar
3. Frost, K. R., and Schwalen, H. C. 1955. Sprinkler evaporation losses. Agric. Eng. 36:526528.Google Scholar
4. Ogg, A. G. Jr. 1976. Application of herbicides through sprinklers. Proc. West. Soc. Weed Sci. 29:5973.Google Scholar
5. Ogg, A. G. Jr. 1986. Applying herbicides in irrigation water – a review. Crop Prot. 5:5365.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 26:11281134.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 2630 in Young, J. R., ed. Proc. National Symp. on Chemigation, Univ. GA. Rural Dev. Cent., Tifton, GA.Google Scholar