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Johnsongrass (Sorghum halepense) Control in Reduced-Tillage Systems

Published online by Cambridge University Press:  12 June 2017

Mark A. Langemeier  and
William W. Witt
Mark A. Langemeier
Affiliation:
Univ. Kentucky, Lexington, KY 40546
William W. Witt
Affiliation:
Univ. Kentucky, Lexington, KY 40546
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Abstract

Fluchloralin [N-(2-chloroethyl)-2,6-dinitro-N-propyl-4-(trifluoromethyl)benzenamine], pendimethalin [N-(1-ethylpropyl)-3,4-dimethyl-2,6-dinitrobenzenamine], and trifluralin [2,6-dinitro-N,N-dipropyl-4-(trifluoromethyl)benzenamine] either alone or in combination with fluazifop {(±)-2-[4-[[5-(trifluoromethyl)-2-pyridinyl]oxy]phenoxy] propanoic acid}, haloxyfop {2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl] oxy] phenoxy] propanoic acid}, or sethoxydim {2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one} were evaluated for johnsongrass [Sorghum halepense (L.) Pers. # SORHA] control in reduced-tillage soybean [Glycine max (L.) Merr.] production systems. Data obtained in 1983 and 1984 near Lexington and Princeton, KY, indicated that johnsongrass could be effectively controlled. A single discing before application of the soil-active herbicides usually had no effect on johnsongrass control. Johnsongrass control was primarily dependent on foliarly applied herbicides. Preplant-incorporated treatments did not provide adequate johnsongrass control when used alone. Johnsongrass panicle numbers recorded in September corresponded to visual evaluations of control recorded earlier in the growing season. Soybean yield with all herbicide treatments was greater than with a nontreated control and was closely associated with the degree of johnsongrass control.

Keywords

Minimum tillagepreplant incorporatedfoliar applicationsGlycine maxSORHA
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 34 , Issue 5 , September 1986 , pp. 751 - 755
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

Literatur Cited

1. Banks, P. A. and Tripp, T. N. 1983. Control of johnsongrass (Sorghum halepense) in soybeans (Glycine max) with foliar-applied herbicides. Weed Sci. 32:269–272.Google Scholar
2. Carter, R. M., Crawford, S. H., and Rogers, R. L. 1975. Controlling johnsongrass in soybeans. La. Agric. 18(3):8–9.Google Scholar
3. Driver, J. and Frans, R. E. 1983. Postemergence control of johnsongrass (Sorghum halepense) in soybeans. Proc. South. Weed Sci. Soc. 36:58.Google Scholar
4. Finley, C. and Hardin, J. 1983. Rhizome johnsongrass [Sorghum halepense (L.) Pers.] control in soybeans with sethoxydim. Proc. South. Weed Sci. Soc. 36:56.Google Scholar
5. Hardin, J. and Viar, B. 1983. Use of sethoxydim in soybeans in reduced tillage systems. Proc. South. Weed Sci. Soc. 36:67.Google Scholar
6. McWhorter, C. G. 1977. Johnsongrass control in soybeans with soil-incorporated dinitroaniline herbicides. Weed Sci. 25:264–267.Google Scholar
7. Nelson, J. E. 1982. The influence of primary tillage on herbicide incorporation. Proc. North Cent. Weed Control Conf. 37:138.Google Scholar
8. Retzinger, E. J. Jr., Rogers, R. L., and Mowers, R. P. 1983. Performance of BAS 9052 applied to johnsongrass (Sorghum halepense) and soybeans (Glycine max). Weed Sci. 31:796–800.Google Scholar
9. Rogers, R. L., Richard, E. P., and Retzinger, E. J. 1983. Effect of application rate and dinitroaniline herbicides on johnsongrass control with sethoxydim and fluazifop-butyl. Proc. South. Weed Sci. Soc. 36:57.Google Scholar
10. Schroeder, D. E. 1982. Conservation tillage effects on herbicide incorporation. Proc. North Cent. Weed Control Conf. 37:137–138.Google Scholar