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On-Farm Evaluation of Mechanical and Chemical Weed Management Practices in Corn (Zea mays)

Published online by Cambridge University Press:  12 June 2017

Robert G. Hartzler ,
Brad D. Van Kooten ,
David E. Stoltenberg ,
Elaine M. Hall  and
Richard S. Fawcett
Robert G. Hartzler
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
Brad D. Van Kooten
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
David E. Stoltenberg
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
Elaine M. Hall
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
Richard S. Fawcett
Affiliation:
Dep. Agron., Iowa State Univ., Ames, IA 50011
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Abstract

Combinations of rotary hoeing, cultivation, and band- or broadcast-applied herbicides were compared for weed management in corn at 64 locations in Iowa from 1987 to 1991. Cultivation alone resulted in denser weed populations than herbicide treatments at 41% of the locations; however, corn yields were reduced at only 22% of the locations when weeds were controlled mechanically rather than with herbicides. Compared with broadcast applications, herbicides applied in a band resulted in increased weed populations at 8% of the locations; however, corn yields were reduced at only 1% of the locations.

Keywords

Corn, Zea mays L.Band applicationcultivationrotary hoeing
Type
Education/Extension
Information
Weed Technology , Volume 7 , Issue 4 , December 1993 , pp. 1001 - 1004
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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