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Cultural Practices Affecting Season-Long Weed Control in Irrigated Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Russell S. Moomaw  and
Alex R. Martin
Russell S. Moomaw
Affiliation:
Northeast Station, Univ. Nebraska, Concord, NE 68728
Alex R. Martin
Affiliation:
Dep. Agron., Univ. Nebraska, Lincoln, NE 68583
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Abstract

Season-long weed control has been a goal of some producers of irrigated corn (Zea mays L.) to reduce competition, lessen weed seed production, facilitate crop harvest, improve water efficiency (particularly with furrow irrigation), and improve aesthetic properties of fields. Field experiments were conducted for 3 yr on sprinkler-irrigated corn on a loamy fine sand. Five herbicides applied at layby generally provided season-long control of grass weeds and reduced weed seed production up to 100%. Pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine] was particularly effective. Yields of irrigated corn were not increased by layby herbicide application. Use of corn rows spaced 91 cm apart and use of a shorter, early-maturing, horizontal-leaf corn cultivar resulted in greater weed growth and weed seed production than did use of 76-cm rows and a taller, full-season, upright-leaf corn cultivar. After nearly complete weed control with herbicides for 2 yr, withholding herbicide use in the third year allowed weed growth which reduced corn yield. Indications were that weed control efforts need to be continuous in irrigated corn production.

Keywords

Layby herbiciderow spacingcultivarpost directedlayby cultivation
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 32 , Issue 4 , July 1984 , pp. 460 - 467
Copyright
Copyright © 1984 by the Weed Science Society of America 

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References

Literature Cited

1. Abernathy, J. R. 1980. Season long grass control in corn and sorghum – A new approach. Weeds Today 11(1): 24.Google Scholar
2. Burnside, O. C. and Fenster, C. R. 1964. Influence of tillage, row spacing, and atrazine on sorghum and weed yields from nonirrigated sorghum across Nebraska. Weeds 12:211–215.Google Scholar
3. Colville, W. L. and Burnside, O. C. 1963. Influence of planting method and row spacing on weed control and corn yield. Trans. Am. Soc. Agric. Eng. 6:223–225.Google Scholar
4. Harvey, R. G. and Jansen, G. E. 1979. Corn layby herbicide application. Res. Rep. North Cent. Weed Control Conf. 36:246.Google Scholar
5. Harvey, R. G. and Jansen, G. E. 1980. Corn herbicide studies. Res. Rep. North Cent. Weed Control Conf. 37:269–274.Google Scholar
6. Miller, J. H. and Carter, C. H. 1980. Performance of six substituted dinitrobenzamine herbicides applied at layby of cotton (Gossypium hirsutum). Weed Sci. 28:212–215.Google Scholar
7. Moomaw, R. S., Martin, A. R., and Wilson, R. G. Jr. 1983. Layby herbicide application for season-long weed control in irrigated corn (Zea mays). Weed Sci. 31:137–140.Google Scholar
8. Roeth, F. W. and Eisenhauer, D. E. 1980. The effect of weeds on furrow irrigation of corn. Res. Rep. North Cent. Weed Control Conf. 37:210.Google Scholar
9. Roeth, F. W. and Eisenhauer, D. E. 1981. The effect of weeds on furrow irrigation of corn. Res. Rep. North Cent. Weed Control Conf. 38:163.Google Scholar
10. Taylorson, R. B. 1970. Changes in dormancy and viability of weed seeds in soils. Weed Sci. 18:265–269.Google Scholar
11. Taylorson, R. B. 1979. Response of weed seeds to ethylene and related hydrocarbons. Weed Sci. 27:7–10.Google Scholar
12. Taylorson, R. B. and Borthwick, H. A. 1969. Light filtration by foliar canopies: Significance for light-controlled weed seed germination. Weed Sci. 17:48–51.Google Scholar
13. Watteyne, K. K., Burnside, O. C., Wicks, G. A., Moomaw, R. S., Wilson, R. G., and Roeth, F. W. 1981. Influence of 100% weed control on demise of weed seeds in soil over years across Nebraska. Proc. North Cent. Weed Control Conf. 36:21.Google Scholar
14. Weed Science Society of America. 1979. Herbicide Handbook. 4th ed. Weed Sci. Soc. Am. Champaign, IL. 479 pp.Google Scholar