Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-23T12:24:02.702Z Has data issue: false hasContentIssue false
  • English
  • Français

Influence of Weed Control on Weed Population in Ridge-till Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Gail A. Wicks ,
Robert G. Wilson ,
Garold W. Mahnken  and
Gordon E. Hanson
Gail A. Wicks
Affiliation:
Univ. Nebraska, Agron. Dep., North Platte, Scottsbluff 69361-4939, North Platte, and North Platte, NE 69101-9545
Robert G. Wilson
Affiliation:
Univ. Nebraska, Agron. Dep., North Platte, Scottsbluff 69361-4939, North Platte, and North Platte, NE 69101-9545
Garold W. Mahnken
Affiliation:
Univ. Nebraska, Agron. Dep., North Platte, Scottsbluff 69361-4939, North Platte, and North Platte, NE 69101-9545
Gordon E. Hanson
Affiliation:
Univ. Nebraska, Agron. Dep., North Platte, Scottsbluff 69361-4939, North Platte, and North Platte, NE 69101-9545
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted to determine the influence of annual herbicide treatments plus cultivation on weed populations and corn yields in ridge-till corn during a 3-yr period at Mitchell, NE, and a 7-yr period at North Platte, NE. When the experiment was initiated at North Platte, no weeds were present before corn planting. It took 4 yr before triazine-resistant kochia became a problem before corn planting in plots treated with atrazine, but these were controlled by other operations prior to corn harvest. In the cultivated check, green foxtail densities before harvest increased from 0 in 1985 to 32 plants 100 m−2 in 1991. Annual applications of dicamba plus 2,4-D 10 d early preplant followed by cultivation controlled triazine-resistant kochia and velvetleaf, but common lambsquarters, nightshade species, and green foxtail increased. Volunteer corn was controlled with cultivation. After 3 yr at Mitchell, the annual weed population increased 10-fold in the cultivated check. Thus, corn yields were reduced 64% with two cultivations compared with an annual early preplant application of dicamba plus 2,4-D followed by alachlor plus cyanazine PRE and two cultivations. With two cultivations under low annual weed populations at North Platte, grain yield from the cultivated check treatment was not different from annual treatments of herbicides after 7 yr. Metolachlor plus atrazine occasionally caused a reduction in corn grain yields.

Keywords

Alachlor, 2-chloro-N-(2,6-diethylphenyl)-N-(methoxy-methyl)acetamideatrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diaminecyanazine, 2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitriledicamba, 3,6-dichloro-2-methoxybenzoic acidmetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide2,4-D, (2,4-dichlorophenoxy)acetic acidcommon lambsquarters, Chenopodium album L. ♯ CHEALeastern black nightshade, Solanum ptycanthum Dun. ♯ SOLPTgreen foxtail, Setaria viridis (L.) Beauv. ♯ SETVIhairy nightshade, Solanum sarrachoides Sendtner ♯ SOLSAkochia, Kochia scoparia (L.) Schrad ♯ KCHSCvelvetleaf, Abutilon theophrasti Medik. ♯ ABUTHcorn, Zea mays L.Conservation tillagecultivationherbicidestriazine resistant kochiaABUTHCHEALKCHSCSETVISOLPTSOLSA
Type
Weed Management
Information
Weed Science , Volume 44 , Issue 4 , December 1996 , pp. 903 - 910
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. Buhler, D. D. 1992. Population dynamics and control of annual weeds in corn (Zea mays) as influenced by tillage systems. Weed Sci. 40: 241–248.CrossRefGoogle Scholar
2. Burnside, O. C., Moomaw, R. S., Roeth, F. W., Wicks, G. A., and Wilson, R. G. 1986. Weed seed demise in soil in weed-free corn (Zea mays) production across Nebraska. Weed Sci. 34: 248–251.CrossRefGoogle Scholar
3. Coffman, C. B. and Frank, J. R. 1992. Corn-weed interactions with long term conservation tillage. Agron. J. 84: 17–21.CrossRefGoogle Scholar
4. Egley, G. H. and Williams, R. D. 1991. Emergence periodicity of six summer annual weed species. Weed Sci. 39: 595–600.CrossRefGoogle Scholar
5. Forcella, F. and Lindstrom, M. J. 1988. Movement and germination of weed seeds in ridge-till crop production systems. Weed Sci. 36: 56–59.CrossRefGoogle Scholar
6. Forcella, F. and Lindstrom, M. J. 1988. Weed seed populations in ridge and conventional tillage. Weed Sci. 36: 500–503.CrossRefGoogle Scholar
7. Foy, C. L. and Witt, H. L. 1991. Effect of safener CGA-154281 on metolachlor/atrazine injury to corn (Zea mays). Weed Technol. 5: 325–330.CrossRefGoogle Scholar
8. Hayes, W. A. 1985. Conservation tillage systems and equipment requirements. Pages 21–40 in D'Itre, F. M., ed. A Systems Approach to Conservation Tillage. Lewis Publishers, Inc., Chelsea, MI.Google Scholar
9. Johnson, R. R. and Wax, L. M. 1981. Stand establishment and yield of corn as affected by herbicides and seed vigor. Agron. J. 73: 859–863.CrossRefGoogle Scholar
10. Jordon, N. 1993. Simulation analysis of weed population dynamics in ridge-tilled fields. Weed Sci. 41: 468–474.CrossRefGoogle Scholar
11. Klein, R. N., Wicks, G. A., Martin, A. R., Moomaw, R. S., Roeth, F. W., Wilson, R. G., and Jasa, P. J. 1992. Ridge plant systems: Weed Control. NebGuide G92-1071-A Coop. Ext. Serv. Univ. Nebraska, Lincoln.Google Scholar
12. Slife, F. W., Fuelleman, R. F., McKibben, G. E., and Scott, W. O. 1950. Controlling weeds in corn with 2,4-D. Univ. of Illinois, Coop. Ext. serv. and USDA. p. 3–7.Google Scholar
13. Wicks, G. A. and Somerhalder, B. R. 1971. Effect of seedbed preparation for corn on distribution of weed seed. Weed Sci. 19: 666–668.CrossRefGoogle Scholar
14. 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. 41: 225–231.CrossRefGoogle Scholar
15. Wilson, R. G., Kerr, E. D., and Nelson, L. A. 1985. Potential for using weed seed content in the soil to predict future weed problems. Weed Sci. 33: 171–175.CrossRefGoogle Scholar
16. Wilson, R. G. 1993. Effect of preplant tillage, post-plant cultivation, and herbicides on weed density in corn (Zea mays). Weed Technol. 7: 728–734.CrossRefGoogle Scholar
17. Wilson, R. G., Jarvi, K. J., Seymour, R. C., Witkowski, J. F., Danielson, S. D., and Wright, R. F. 1992. Annual weed growth across Nebraska. Univ. Nebraska, Lincoln. Res. Bull. 314-F.Google Scholar