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Reduced-Herbicide Weed Management Systems for No-Tillage Corn (Zea mays) in a Hairy Vetch (Vicia villosa) Cover Crop

Published online by Cambridge University Press:  12 June 2017

John R. Teasdale
John R. Teasdale*
Affiliation:
Weed Sci. Lab., U. S. Dep. Agric, Agric. Res. Serv., Beltsville, MD 20705
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Abstract

Weed management treatments with various degrees of herbicide inputs were applied with or without a hairy vetch cover crop to no-tillage corn in four field experiments at Beltsville, MD. A hairy vetch living mulch in the no-treatment control or a dead mulch in the mowed treatment improved weed control during the first 6 wk of the season but weed control deteriorated in these treatments thereafter. Competition from weeds and/or uncontrolled vetch in these treatments without herbicides reduced corn yield in three of four years by an average of 46% compared with a standard PRE herbicide treatment of 0.6 kg ai/ha of paraquat plus 1.1 kg ai/ha of atrazine plus 2.2 kg ai/ha of metolachlor. Reducing atrazine and metolachlor to one-fourth the rate of the standard treatment in the absence of cover crop reduced weed control in three of four years and corn yield in two of four years compared with the standard treatment. Hairy vetch had little influence on weed control or corn yield with any herbicide treatments.

Keywords

Atrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diaminemetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamideparaquat, 1,1′-dimethyl-4,4′-bipyridinium ioncorn, Zea mays L.hairy vetch, Vicia villosa Roth # VICVISustainable agricultureatrazinedicambametolachlornicosulfuronparaquatVICVI
Type
Research
Information
Weed Technology , Volume 7 , Issue 4 , December 1993 , pp. 879 - 883
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

Literature Cited

1. Blevins, R. L., Herbek, J. H., and Frye, W. W. 1990. Legume cover crops as a nitrogen source for no-till corn and grain sorghum. Agron. J. 82:769–772.CrossRefGoogle Scholar
2. Brown, S. M. and Whitwell, T. 1985. Weed control programs for minimum-tillage cotton. Weed Sci. 33:843–847.CrossRefGoogle Scholar
3. Decker, A. M., Clark, A. J., Meisinger, J. J., Mulford, F. R., and Bandel, V. A. 1992. Winter annual cover crops for Maryland corn production systems. Maryland Agronomy Mimeo 34. 12 p.Google Scholar
4. Echtenkamp, G. W. and Moomaw, R. S. 1989. No-till corn production in a living mulch system. Weed Technol. 3:261–266.CrossRefGoogle Scholar
5. Griffin, J. L. and Dabney, S. M. 1990. Preplant-postemergence herbicides for legume cover-crop control in minimum tillage systems. Weed Technol. 4:332–336.CrossRefGoogle Scholar
6. Holderbaum, J. F., Decker, A. M., Meisinger, J. J., Mulford, F. R., and Vough, L. R. 1990. Fall-seeded legume cover crops for no-tillage corn in the humid east. Agron. J. 82:117–124.CrossRefGoogle Scholar
7. Little, T. M. and Hills, F. J. 1978. Agricultural Experimentation Design and Analysis. John Wiley & Sons, New York. 350 p.Google Scholar
8. McVay, K. A., Radcliffe, D. E., and Hargrove, W. L. 1989. Winter legume effects on soil properties and nitrogen fertilizer requirements. Soil Sci. Soc. Am. J. 53:1856–1862.CrossRefGoogle Scholar
9. Mohler, C. L. and Teasdale, J. R. Response of weed emergence to rate of Vicia villosa and Secale cereale residue. Weed Res. (In press).Google Scholar
10. National Research Council. 1989. Alternative Agriculture. National Academy Press, Washington, DC. 448 p.Google Scholar
11. Teasdale, J. R. and Daughtry, C.S.T. 1993. Weed suppression by live and desiccated hairy vetch. Weed Sci. 41:207–212.CrossRefGoogle Scholar
12. U. S. Dep. Agric. 1992. Agricultural Statistics. U. S. Gov. Printing Office, Washington. 524 p.Google Scholar
13. White, R. H. and Worsham, A. D. 1990. Control of legume cover crops in no-till corn and cotton. Weed Technol. 4:57–62.CrossRefGoogle Scholar