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Using Reduced Rates of Postemergence Herbicides in Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Daniel L. Devlin ,
James H. Long  and
Larry D. Maddux
Daniel L. Devlin
Affiliation:
Kans. Coop. Ext. Serv., Kans. State Univ., Manhattan, KS 66502
James H. Long
Affiliation:
Dep. Agron., Kans. State Univ., Manhattan, KS 66506
Larry D. Maddux
Affiliation:
Dep. Agron., Kans. State Univ., Manhattan, KS 66506
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Abstract

Eight field studies were conducted in soybeans at seven locations in Kansas over a 3-yr period to examine the efficacy of using reduced rates of the herbicides acifluorfen, bentazon, chlorimuron, and tank mixes of acifluorfen and bentazon. POST applications of these herbicides at 1/2X rates at 2 wk after planting (WAP) resulted in broadleaf weed control similar to that obtained from standard treatments of 1X rates applied at 4 WAP at six of seven studies with acifluorfen, bentazon, and acifluorfen plus bentazon and at five of seven studies with chlorimuron. One-quarter rates applied 2 WAP were equivalent to standard treatments for broadleaf weed control in four of seven studies with acifluorfen and chlorimuron, five of seven studies with bentazon, and six of seven studies with acifluorfen plus bentazon. One cultivation at 4 WAP, increased the broadleaf weed control with all herbicide treatments.

Keywords

acifluorfen, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acidbentazon, 3-(1-methylethyl)-(1H)2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidechlorimuron, 2-[[[[4-chloro-6-methoxy-2-pyrimidinyl)-amino]carbonyl]amino]sulfonyl]benzoic acidcommon cocklebur, Xanthium strumarium L. ♯ XANSTcommon sunflower, Helianthus annuus L. ♯ HELANgiant ragweed, Ambrosia trifida L. ♯ AMBTRsoybean, Glycine max L. Merr.smooth pigweed, Amaranthus hybridus L. ♯ AMACHvelvetleaf, Abutilon theophrasti Medik. ♯ ABUTHAcifluorfenbentazonchlorimuronAbutilon theophrastiAmaranthus hybridusAmbrosia trifidaHelianthus annuusXanthium strumariumABUTHAMACHAMBTRHELANXANST
Type
Research
Information
Weed Technology , Volume 5 , Issue 4 , December 1991 , pp. 834 - 840
Copyright
Copyright © 1990 by the Weed Science Society of America 

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References

Literature Cited

1. Baldwin, F. L., and Oliver, L. R. 1985. A reduced rate intensive management soybean weed control program. Proc. South. Weed Sci. Soc. 38:487.Google Scholar
2. Chen, Y. Z., and Penner, D. 1985. Combination effects of acifluorfen with crop oil concentrates and postemergence grass herbicides. Weed Sci. 33:91–95.CrossRefGoogle Scholar
3. Croon, K. A., and Merkle, M. G. 1988. Effects of bentazon, imazaquin, or chlorimuron on haloxyfop or fluazifop-P efficacy. Weed Technol. 2:36–40.CrossRefGoogle Scholar
4. Defelice, M. S., Brown, W. B., Aldrich, R. J., Sims, B. D., Judy, D. T., and Guethle, D. R. 1989. Weed control in soybeans (Glycine max) with reduced rates of postemergence herbicides. Weed Sci. 37:365–374.CrossRefGoogle Scholar
5. Dexter, A. G., and Nalewaja, J. D. 1986. Interactions among postemergence herbicides. Proc. North Cent. Weed Control Conf. 41:48.Google Scholar
6. Eaton, B. J., Russ, O. G., and Feltner, K. C. 1976. Competition of velvetleaf, prickly sida, and venice mallow in soybeans. Weed Sci. 24:224–228.CrossRefGoogle Scholar
7. Feldick, T., and Kapusta, G. 1986. Influence of weed size on the efficacy of reduced rates of postemergence-applied acifluorfen, bentazon, imazaquin, and DPX-F6025 in soybeans. Proc. North Cent. Weed Control Conf. 41:47.Google Scholar
8. Glenn, S., Hook, B. J., Peregoy, R. S., and Wiepke, T. 1985. Control of velvetleaf (Abutilon theophrasti) and common cocklebur (Xanthium pensylvanicum) in soybeans (Glycine max) with sequential applications of mefluidide and acifluorfen. Weed Sci. 33:244–249.Google Scholar
9. Hagood, E. S. Jr., Bauman, T. T., Williams, J. L. Jr., and Schreiber, M. M. 1980. Growth analysis of soybeans (Glycine max) in competition with velvetleaf (Abutilon theophrasti). Weed Sci. 28:729–734.CrossRefGoogle Scholar
10. Harvey, R. G., Nelson, R. K., and Halstead, S. J. 1986. Timing postemergence herbicides for soybean weed control. Proc. North Cent. Weed Control Conf. 41:44.Google Scholar
11. Hopkins, J. A., Oliver, L. R., Baldwin, F. L. 1986. Intensive soybean herbicide management programs. Proc. South. Weed Sci. Soc. 39:94.Google Scholar
12. Lee, S. D., and Oliver, L. R. 1982. Efficacy of acifluorfen on broadleaf weeds. Times and method of application. Weed Sci. 30:520–526.Google Scholar
13. Peters, E. J., Gebhardt, M. R., and Stritzke, J. F. 1965. Interrelations of row spacings, cultivations, herbicides on weed control in soybeans. Weeds 13:285–289.Google Scholar
14. Wax, L. M., and Pendleton, J. W. 1968. Effect of row spacing on weed control in soybeans. Weed Sci. 16:462:465.Google Scholar