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Effect of Atrazine and Tillage on Alfalfa (Medicago sativa) Establishment in Corn (Zea ways)-AlfaIfa Rotation

Published online by Cambridge University Press:  12 June 2017

James J. Kells ,
Richard H. Leep ,
Milo B. Tesar ,
Richard A. Leavitt  and
John Cudnohufsky
James J. Kells
Affiliation:
Dep. Crop Sci., Specialist, Pestic. Res. Cent., Mich. State Univ., East Lansing, MI 48824
Richard H. Leep
Affiliation:
Dep. Crop Sci., Specialist, Pestic. Res. Cent., Mich. State Univ., East Lansing, MI 48824
Milo B. Tesar
Affiliation:
Dep. Crop Sci., Specialist, Pestic. Res. Cent., Mich. State Univ., East Lansing, MI 48824
Richard A. Leavitt
Affiliation:
Dep. Crop Sci., Specialist, Pestic. Res. Cent., Mich. State Univ., East Lansing, MI 48824
John Cudnohufsky
Affiliation:
Monsanto Co., Okemos, MI 48864
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Abstract

The effect of atrazine rate and subsequent tillage on seedling alfalfa injury from atrazine carry-over was examined at two locations in Michigan. Atrazine concentration and alfalfa injury 1 yr after treatment were greater in the northern location than in the central Michigan location. At both locations, alfalfa injury was significantly greater under no-tillage than moldboard plowing. With no-tillage, alfalfa was injured more in the area between the previous corn rows than within the rows. Analysis of soil samples collected from within corn rows and between rows showed higher atrazine concentration between the corn rows.

Keywords

Atrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diaminecorn, Zea mays L.alfalfa, Medicago sativa L. ‘Big 10’Carry-overno-tilltriazine
Type
Research
Information
Weed Technology , Volume 4 , Issue 2 , June 1990 , pp. 360 - 365
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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