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Effect of Atrazine Residue on Soybean Growth Under Three Tillage Systems and Various Herbicides

Published online by Cambridge University Press:  12 June 2017

John A. Pawlak ,
James J. Kells ,
Michael Barrett  and
William F. Meggitt
John A. Pawlak
Affiliation:
Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
James J. Kells
Affiliation:
Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
Michael Barrett
Affiliation:
Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
William F. Meggitt
Affiliation:
Dep. Crop and Soil Sci., Michigan State Univ., East Lansing, MI 48824
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Abstract

Field experiments were conducted to examine the effect of tillage on atrazine [6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diamine] persistence in the soil and soybean [Glycine max (L.) Merr.] injury. Tillage systems evaluated were no-tillage, chisel plowing, and moldboard plowing. Reduced tillage systems, such as no-tillage or chisel plowing, resulted in greater soybean injury from atrazine residue than did moldboard plowing. Regardless of atrazine residue level, metribuzin [4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-one] resulted in the greatest injury to soybeans. Metribuzin application in combination with atrazine residue increased soybean injury under the chisel plowed system.

Keywords

No-tillageconservation tillagemetribuzinatrazine persistence
Type
Research
Information
Weed Technology , Volume 1 , Issue 2 , April 1987 , pp. 140 - 144
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

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