Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-24T06:46:49.318Z Has data issue: false hasContentIssue false
  • English
  • Français

Efficacy of Corn (Zea mays) Herbicides Applied at Reduced Rates Impregnated in Dry Fertilizer

Published online by Cambridge University Press:  12 June 2017

Thomas L. Rabaey  and
R. Gordon Harvey
Thomas L. Rabaey
Affiliation:
Dep. Agron., Univ. Wisconsin, Madison, WI 53706-1597
R. Gordon Harvey
Affiliation:
Dep. Agron., Univ. Wisconsin, Madison, WI 53706-1597
Get access Rights & Permissions [Opens in a new window]

Abstract

Field studies were conducted in 1992 and 1993 to evaluate the efficacy of EPTC plus R-29148 (EPTC+) plus cyanazine and alachlor plus cyanazine. Materials were applied PPI and PRE to corn at 25, 50, 75, and 100% of labeled rates in an aqueous solution (sprays) and as herbicide-impregnated fertilizer. EPTC+ plus cyanazine at all rates applied as sprays or as herbicide-impregnated fertilizer controlled 89% or more of giant foxtail. Velvetleaf and common lambsquarters control was less when alachlor plus cyanazine was applied as herbicide-impregnated fertilizer than when applied as sprays. When sprayed, alachlor plus cyanazine applied PPI controlled 95% giant foxtail only at the 100% rate without cultivation, but at all rates with cultivation. Alachlor plus cyanazine applied as impregnated fertilizer at 50, 75, and 100% labeled rates controlled 88% or more of giant foxtail when these treatments received a interrow cultivation. PRE treatments of alachlor plus cyanazine applied as herbicide-impregnated fertilizer were less effective in 1992 than in 1993 because of lack of timely precipitation following application.

Keywords

Alachlor, 2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamidecyanazine, 2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropanenitrileEPTC, S-ethyl dipropyl carbamothioateR-29148, 3-(dichloroacetyl)-2,2,5-trimethyloxazolidinegiant foxtail, Setaria faberi Herrm. ♯ SETFAvelvetleaf, Abutilon theophrasti Medicus ♯ ABUTHcommon lambsquarters, Chenopodium album L. ♯ CHEALcorn, Zea mays L., ‘Pioneer 3751.’Aqueous solution spraysintegrated weed managementinterrow cultivationrotary hoeingalachlorcyanazineEPTCAbutilon theophrastiChenopodium albumSetaria faberiABUTHCHEALSETFA
Type
Research
Information
Weed Technology , Volume 8 , Issue 4 , December 1994 , pp. 830 - 835
Copyright
Copyright © 1994 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. Buchholtz, K. P. and Doersch, R. E. 1967. Cultivation and herbicides for weed control in corn. Weed Sci. 16:232–234.CrossRefGoogle Scholar
2. Doll, J., Doersch, R., Proost, R., and Kivlin, P. 1992, Reduced herbicide rates: Aspects to consider. Univ. Wisconsin Ext. Pub., A3563.Google Scholar
3. Hall, M. R., Swanton, C. J., and Anderson, G. W. 1992. The critical period of weed control in grain corn (Zea mays). Weed Sci. 40:441–447.Google Scholar
4. Harvey, R. G., Albright, J. W., Anthon, T. M., and Rabaey, T. L. 1993. A pneumatic spreader for applying granule formulations or herbicides impregnated on dry fertilizer. Weed Sci. Soc. Am. Abstr. 33:41.Google Scholar
5. Mulder, T. A. and Doll, J. D. 1993. Integrating reduced herbicide use with mechanical weeding in corn (Zea mays). Weed Technol. 7:382–389.Google Scholar
6. Prostko, E. P. and Meade, J. A. 1993. Reduced rates of postemergence herbicides in conventional soybeans (Glycine max). Weed Technol. 7:365–369.Google Scholar
7. Rabaey, T. L. and Harvey, R. G. 1992. Relative efficacy of herbicides applied at reduced rates as sprays or impregnated on dry fertilizer. Weed Sci. Soc. Am. Abstr. 33:10.Google Scholar
8. Rabaey, T. L. and Harvey, R. G. 1993. Efficacy of herbicides applied at reduced rates as sprays or impregnated on dry fertilizer. Weed Sci. Soc. Am. Abstr. 34:79.Google Scholar
9. Steckel, L. E., DeFelice, M. S., and Sims, B. D. 1990. Integrating reduced rates of postemergence herbicides and cultivation for broadleaf weed control in soybeans (Glycine max). Weed Sci. 38:541–545.Google Scholar
10. Steel, R.G.D., and Torrie, J. H. 1980. Principles and Procedures of Statistics. McGraw-Hill Book Co., New York. 633 p.Google Scholar
11. Swanton, C. J. and Weise, S. F. 1991. Integrated weed management: The rationale and approach. Weed Technol. 5:657–663.Google Scholar
12. U.S. Dep. of Agric. 1990. Economic indicators of the farm sector-costs of production. ECIFS 10-4. Econ. Res. Serv., Washington, D.C. Google Scholar