Hostname: page-component-7dd5485656-s6l46 Total loading time: 0 Render date: 2025-10-31T23:07:34.261Z Has data issue: false hasContentIssue false
  • English
  • Français

Johnsongrass Control in Soybeans with Soil-Incorporated Dinitroaniline Herbicides

Published online by Cambridge University Press:  12 June 2017

C.G. McWhorter
C.G. McWhorter*
Affiliation:
South. Weed Sci. Lab., Agric. Res. Serv., U.S. Dep. Agric., Stoneville, MS 38776
Get access Rights & Permissions [Opens in a new window]

Abstract

Field experiments were conducted to study the feasibility of using several dinitroaniline herbicides for the selective control of johnsongrass [Sorghum halepense (L.) Pers.] from seed and rhizomes in soybeans [Glycine max (L.) Merr. ‘Bragg’]. The herbicides were incorporated into the soil with two disk cultivations immediately after application. These were trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) at 0.6 to 2.2 kg/ha, nitralin [4-(methylsulfonyl)-2,6-dinitro-N,N-dipropylaniline] at 0.6 to 2.2 kg/ha, dinitramine (N 4,N 4-diethyl-α,α,α,-trifluoro-3,5-dinitrotoluene-2,4-diamine) at 0.4 to 1.5 kg/ha, fluchloralin [N-(2-chloroethyl)-2,6-dinitro-N-propyl-4-(trifluoromethyl)aniline] at 0.6 to 2.2 kg/ha, profluralin [N-(cyclopropyl-methyl)-α,α,α-trifluoro-2,6-dinitro-N-propyl-p-toluidine] at 0.8 to 3.4 kg/ha, butralin [4-(1,1-dimethylethyl)-N-(1-methylpropyl)-2,6-dinitrobenzenamine] at 1.7 to 6.7 kg/ha, AC-92390 (N-sec-butyl-2,6-dinitro-3,4-xylidine) at 0.8 to 3.4 kg/ha, and AN-56477 [N,N-di(2-chloroethyl)-4-methyl-2,6-dinitroaniline] at 2.2 to 4.5 kg/ha. On Bosket sandy loam soil, the best average johnsongrass control over a 2-yr period was obtained following profluralin at 1.7 kg/ha and butralin at 3.4 kg/ha. These treatments also resulted in highest average soybean yields. On Sharkey clay soil, profluralin at 3.4 kg/ha and butralin at 6.7 kg/ha resulted in maximum johnsongrass control and soybean yields. Immediate incorporation of profluralin and butralin into both soils for 2 successive years effectively controlled johnsongrass from rhizomes without soybean injury and with greatly increased soybean yields. Trifluralin, nitralin, and fluchloralin also provided acceptable johnsongrass control within individual experiments, and greatly increased soybean yields.

Information

Type
Research Article
Information
Weed Science , Volume 25 , Issue 3 , May 1977 , pp. 264 - 267
Copyright
Copyright © 1977 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.)

Article purchase

Temporarily unavailable

References

Literature Cited

1. Carter, R.M., Crawford, S.H., and Rogers, R.L. 1975. Controlling johnsongrass in soybeans. La. Agric. 18(3):8–9.Google Scholar
2. Holm, L. 1969. Weed problems in developing countries. Weed Sci. 17:113–118.CrossRefGoogle Scholar
3. McWhorter, C.G. 1972. Factors affecting johnsongrass rhizome production and germination. Weed Sci. 20:41–45.CrossRefGoogle Scholar
4. McWhorter, C.G. 1974, Johnsongrass control in soybeans with trifluralin and nitralin. Weed Sci. 22:111–115.CrossRefGoogle Scholar
5. McWhorter, C.G. and Hartwig, E.E. 1965. Effectiveness of preplanting tillage in relation to herbicides in controlling johnsongrass for soybean production. Agron. J. 57:385–389.CrossRefGoogle Scholar
6. McWhorter, C.G. and Hartwig, E.E. 1972. Competition of johnsongrass and cocklebur with six soybean varieties. Weed Sci. 20:56–59.CrossRefGoogle Scholar
7. Overton, J.R., Mullins, J.A., and Jeffery, L.S. 1974. Control of johnsongrass in soybeans with preplant incorporated herbicides. Tenn. Farm and Home Sci. Prog. Rep. 90:5–7.Google Scholar
8. Savage, K.E. 1973. Nitralin and trifluralin persistence in soil. Weed Sci. 21:285–288.CrossRefGoogle Scholar