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Soil Persistence of Herbicides for Corn, Sorghum, and Soybeans during the Year of Application

Published online by Cambridge University Press:  12 June 2017

O. C. Burnside  and
M. E. Schultz
O. C. Burnside
Affiliation:
Dep. of Agron., Univ. of Nebraska, Lincoln, NB 68583
M. E. Schultz
Affiliation:
Dep. of Agron., Univ. of Nebraska, Lincoln, NB 68583
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Abstract

Herbicides used in corn (Zea mays L.), sorghum [Sorghum bicolor (L.) Moench], and soybeans [Glycine max (L.) Merr.] were applied in the spring and their persistence into late summer was determined during 1974 to 1976. Composite soil samples from the top 5 cm of field plots were taken each August and bioassayed in the greenhouse. Bioassay species used were winter wheat [Triticum aestivum L.) and soybeans for herbicides used in corn and sorghum, and winter wheat and white mustard (Brassica hirta Moench) for herbicides used in soybeans. Soil persistence of triazine herbicides caused more injury to winter wheat, soybeans, and white mustard than any other class of herbicides tested. Atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] showed the most soil persistence of the five triazines evaluated. At normal field application rates, herbicides other than the triazines showed little injury to the bioassay plants. Soil persistence of herbicides was further reduced when combinations of reduced rates of each herbicide were utilized. Herbicides used for spring applications in corn showed more soil persistence in August than did the herbicides for sorghum, while herbicides for soybeans generally were least persistent. Postemergence herbicide applications resulted in more injury in bioassay species than preplant incorporated or preemergence applications. Persistence of some herbicides will restrict certain options to the grower such as changing crops in case of crop failure, fall planting of winter wheat, double cropping, or certain crop rotations.

Type
Research Article
Information
Weed Science , Volume 26 , Issue 2 , March 1978 , pp. 108 - 115
Copyright
Copyright © 1978 by the Weed Science Society of America 

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References

Literature Cited

1. Burnside, O. C., Fenster, C. R., and Wicks, G. A. 1963. Dissipation and leaching of monuron, simazine, and atrazine in Nebraska soils. Weeds 11:209–213.CrossRefGoogle Scholar
2. Burnside, O. C., Fenster, C. R., Wicks, G. A., and Drew, J. V. 1969. Effect of soil and climate on herbicide dissipation. Weed Sci. 17:241–245.Google Scholar
3. Hartley, G. S. 1964. Herbicide behaviour in the soil. Pages 111–161. in Audus, L. J., ed. The physiology and biochemistry of herbicides. Academic Press, New York.Google Scholar
4. Helling, C. S., Kearney, P. C., and Alexander, Martin. 1971. Behavior of pesticides in soils. Pages 147–240. in Advances in agronomy, Vol. 23. Academic Press, New York.Google Scholar
5. Kearney, P. C., Nash, R. G., and Isensee, A. R. 1969. Pages 54–67. in Miller, M. W. and Berg, G. G., eds. Chemical fallout: current research on persistent pesticides. Thomas, Springfield, Illinois.Google Scholar
6. Steel, R. G. D. and Torrie, J. H. 1960. Principles and procedures of statistics. McGraw-Hill Book Company, Inc., New York. 481 p.Google Scholar
7. Talbert, R. E. and Fletchall, O. H. 1964. Inactivation of simazine and atrazine in the field. Weeds 12:33–37.Google Scholar
8. Upchurch, R. P. and Pierce, W. C. 1957. The leaching of monuron from lakeland sand soil. Part I. The effect of amount, intensity, and frequency of simulated rainfall. Weeds 5:321–330.Google Scholar