Hostname: page-component-cd9895bd7-jn8rn Total loading time: 0 Render date: 2024-12-23T05:27:10.032Z Has data issue: false hasContentIssue false
  • English
  • Français

Weed Control in Ecofallow Corn (Zea mays) with Clomazone

Published online by Cambridge University Press:  12 June 2017

Gail A. Wicks ,
Gary W. Mahnken  and
Gordon E. Hanson
Gail A. Wicks
Affiliation:
Univ. Nebraska, West Cent. Res. Ext. Ctr., North Platte, NE 69101
Gary W. Mahnken
Affiliation:
Univ. Nebraska, West Cent. Res. Ext. Ctr., North Platte, NE 69101
Gordon E. Hanson
Affiliation:
Univ. Nebraska, West Cent. Res. Ext. Ctr., North Platte, NE 69101
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted from 1986 through 1989 to determine the feasibility of using clomazone in a winter wheat-corn-fallow rotation. Clomazone at 1.1 kg ai/ha did not control emerged downy brome in autumn nor did it control redroot pigweed and tumble pigweed that emerged after a spring application of paraquat at 0.6 kg ai/ha. However, clomazone plus atrazine at 0.6 plus 2.2 kg ai/ha provided weed control in winter wheat stubble from October to corn harvest 12 mo later. Corn yields from this treatment were equal to or greater than the conventional practice of applying atrazine plus glyphosate at 2.2 plus 0.4 kg ae/ha in the fall followed by a spring application of metolachlor plus dicamba at 2.8 ai plus 0.3 kg ae/ha. When kochia densities were high, clomazone plus atrazine controlled triazine-resistant kochia better than metolachlor plus dicamba. Atrazine at 2.2 kg/ha applied in autumn followed by clomazone at 0.8 kg/ha in April generally caused more corn injury than when the same rate of clomazone was applied in autumn with the atrazine. The percent of bleached corn plants varied with planter, year, time of application, and rate of clomazone applied. The optimum time to apply clomazone at 0.6 kg/ha was in autumn with atrazine. This treatment caused some corn bleaching but produced the highest corn yield over 3 yr. In a dry autumn and spring, less clomazone injury occurred with a planter equipped with row cleaners than those without. The injury pattern associated with planters was inconsistent when precipitation was average and no injury occurred in a wet autumn and spring.

Keywords

Atrazine, 6-chloro-N-ethyl-N'-(1-methylethyl)-1,3,5-triazine-2,4-diamineclomazone, 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinonedicamba, 3,6-dichloro-2-methoxybenzoic acidglyphosate, N-(phosphonomethyl)glycinemetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamideparaquat, (1,1′-dimethyl-4,4′-bipyridinium ion)downy brome, Bromus tectorum L. ♯3BROTEkochia, Kochia scoparia (L.) Schrad. ♯ KCHSCredroot pigweed, Amaranthus retroflexus L. ♯ AMAREtumble pigweed, Amaranthus albus L. ♯ AMAALcorn, Zea mays L.winter wheat, Triticum aestivum L., ‘Brule.’Ecofarmingmechanical herbicide safeningno-tilltriazine-resistantatrazinekochiaredroot pigweedtumble pigweedAMAALAMAREBROTEKCHSC
Type
Research
Information
Weed Technology , Volume 10 , Issue 3 , September 1996 , pp. 495 - 501
Copyright
Copyright © 1996 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

Literature Cited

1. Anderson, R. L. 1990. Tolerance of safflower (Carthamus tinctorius), corn (Zea mass), and proso millet (Panicum miliaceum) to clomazone. Weed Technol. 4:606–611.Google Scholar
2. Burnside, O. C. and Wicks, G. A. 1982. Weed control in corn planted into untilled winter wheat stubble. Agron. J. 74:521–526.Google Scholar
3. Curran, W. S., Knake, E. L., and Liebl, R. A. 1991. Corn (Zea mays) injury following use of clomazone, chlorimuron, imazaquin, and imazethapyr. Weed Technol. 5:539–544.Google Scholar
4. Fenster, C. R. and Wicks, G. A. 1982. Fallow systems for winter wheat in western Nebraska. Agron. J. 74:9–13.Google Scholar
5. Fenster, C. R. and Wicks, G. A. 1977. Minimum tillage fallow systems for reducing wind erosion. Trans. Am. Soc. Agric. Eng. 20:906–910.CrossRefGoogle Scholar
6. Halstead, S. J. and Harvey, R. G. 1988. Effect of rate and carrier on clomazone movement off-site. Weed Technol. 2:179–182.Google Scholar
7. Kiefer, D. W. 1989. Tolerance of corn (Zea mays) lines to clomazone. Weed Sci. 37:622–628.Google Scholar
8. Krausz, R. F. and Kapusta, G. 1992. Safening of corn (Zea mays) from clomazone injury with naphthalic anhydride. Weed Technol. 6:543–547.Google Scholar
9. Krausz, R. F., Kapusta, G., and Knake, E. L. 1992. Soybean (Glycine max) and rotational crop tolerance to chlorimuron, clomazone, imazaquin, and imazethapyr. Weed Technol. 6:77–80.CrossRefGoogle Scholar
10. Loux, M. M., Liebl, R. A., and Slife, F. W. 1989. Availability and persistence of imazaquin, imazethapyr, and clomazone in soil. Weed Sci. 37:259–267.CrossRefGoogle Scholar
11. Lux, J. F. and Dekker, J. 1986. Varietal response of maize of FMC-57020 soil residues. Proc. North Cent. Weed Control Conf. 14:91–92.Google Scholar
12. Lyon, D. J. and Anderson, R. L. 1993. Crop response to fallow applications of atrazine and clomazone. Weed Technol. 7:949–953.Google Scholar
13. Mills, J. A., Witt, W. W., and Barrett, M. 1989. Effects of tillage on the efficacy and persistence of clomazone in soybean (Glycine max). Weed Sci. 37:217–222.Google Scholar
14. Pendleton, J. W. 1979. Cropping Practices, p. 18–21 in Maise. Hafliger, E., ed. Ciba-Geigy Ltd. Basel, Switzerland.Google Scholar
15. Triplett, G. B. 1986. Crop management practices for surface-tillage systems. p. 149–182 in Sprague, M. A. and Triplett, G. B., eds. No-Tillage and Surface-Tillage Agriculture—The Tillage Revolution. John Wiley and Sons, New York.Google Scholar
16. Werling, V. L. and Buhler, D. D. 1988. Influence of application time on clomazone activity in no-till soybeans (Glycine max). Weed Sci. 36:629–635.Google Scholar
17. Wicks, G. A., Smika, D. E., and Hergert, G. W. 1988. Long-term effects of no-tillage in a winter wheat (Triticum aestivum)-sorghum (Sorghum bicolor)-fallow rotation. Weed Sci. 36:384–393.CrossRefGoogle Scholar
18. Wicks, G. A., Martin, A. R., and Mahnken, G. W. 1993. Control of triazine resistant kochia (Kochia scoparia) in conservation tillage corn (Zea mays) Weed Sci. 4:225–231.Google Scholar
19. Wicks, G. A., Martin, A. R., Haack, A. E., and Mahnken, G. W. 1994. Control of triazine-resistant kochia (Kochia scoparia) in sorghum (Sorghum bicolor). Weed Technol. 8:748–753.Google Scholar
20. Wilson, J. S. and Worsham, A. D. 1988. Combinations of nonselective herbicides for difficult to control weeds in no-till corn, Zea mays, and soybeans. Glycine max . Weed Sci. 36:648–652.Google Scholar