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Crop and Herbicide Rotations for Johnsongrass (Sorghum halepense) Control

Published online by Cambridge University Press:  12 June 2017

Robert E. Frans
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR
Marilyn R. Mcclelland
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR
Diana K. Horton
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR
Billy R. Corbin Jr.*
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR
Ronald E. Talbert
Affiliation:
Dep. Agron., Univ. Arkansas, Fayetteville, AR
*
Address of B. Corbin is Valent U.S.A., P. O. Box 5008, Greenville, MS 38704.

Abstract

Four-year cropping sequences of continuous cotton, cotton-soybeans-soybeans-cotton, continuous soybeans, soybeans-grain sorghum-soybeans-grain sorghum, and cotton-rice-cotton-rice were treated each year with high and low levels of herbicides to control johnsongrass. High levels of herbicide were necessary to control johnsongrass in continuous cotton, cotton-soybeans-soybeans-cotton, continuous soybeans, and the soybeans-grain sorghum rotation. Johnsongrass was not eradicated, however, after 4 years of cropping sequences with high herbicide inputs. Both low and high levels of herbicide coupled with water management required for rice production controlled johnsongrass and prevented rice yield reductions.

Type
Weed Control and Herbicide Technology
Copyright
Copyright © 1992 by the Weed Science Society of America 

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Footnotes

1

Published with approval of the Director of the Arkansas Agric. Exp. Stn., Univ. Arkansas, Fayetteville, AR 72701.

References

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