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Effect of Three Weed Control Regimes on No-Till and Tilled Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Edward L. Robinson ,
George W. Langdale  and
John A. Stuedemann
Edward L. Robinson
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Watkinsville, GA 30677
George W. Langdale
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Watkinsville, GA 30677
John A. Stuedemann
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Watkinsville, GA 30677
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Abstract

Postemergence applications or a combination of preemergence and postemergence treatments in double cropped soybeans [Glycine max (L.) Merr. ‘Ransom’] resulted in higher soybean yields than preemergence applications. Preemergence-treated plots were 98% weed free early in the growing season; however, weeds emerged later and reduced yields. Weeds had to be controlled in soybeans for 90% of the growing season to avoid yield loss. Soybean yields were higher under no-till than conventionally tilled management in two of three years and tended to be higher during the third year. Distribution and timing of rainfall were more important in determining soybean yield than the total amount received during the growing season.

Keywords

Reduced tillageminimum tillageconservation tillagecompacted soil
Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 32 , Issue 1 , January 1984 , pp. 17 - 19
Copyright
Copyright © 1984 by the Weed Science Society of America 

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References

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