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Chemical Weed Control in Dryland and Irrigated Chickpea

Published online by Cambridge University Press:  20 January 2017

Drew J. Lyon  and
Robert G. Wilson
Drew J. Lyon*
Affiliation:
University of Nebraska Panhandle Research and Extension Center, 4502 Avenue I, Scottsbluff, NE 69361
Robert G. Wilson
Affiliation:
University of Nebraska Panhandle Research and Extension Center, 4502 Avenue I, Scottsbluff, NE 69361
*
Corresponding author's E-mail: dlyon1@unl.edu
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Abstract

Field studies were conducted in 2003 and 2004 near Scottsbluff and Sidney, NE, to identify efficacious chemical weed-control options for irrigated and dryland chickpea production. Weed control had a greater relative effect on chickpea yield in the irrigated system than the dryland system, with yield from the hand-weeded check exceeding the nontreated check by 1,500% in the irrigated system and 87% in the dryland system. Imazethapyr, applied preemergence at the rate of 0.053 kg ai/ha, reduced plant height, delayed plant maturity, and caused leaf chlorosis. At Scottsbluff, preplant-incorporated ethalfluralin caused significant crop injury in 2003, but the ethalfluralin treatment also maintained weed densities 4 wk after crop emergence that were not significantly different than the hand-weeded check at both locations in 2003 and 2004. Treatments containing sulfentrazone provided a similar level of weed control but without any evidence of crop injury. Pendimethalin and pendimethalin + dimethenamid-P applied preemergence provided acceptable weed control in the irrigated system, where water was applied within 4 d after herbicide application, but did not provide acceptable control in the dryland system.

Keywords

Dimethenamid-PethalfluralinimazethapyrpendimethalinsulfentrazonechickpeaCicer arietinum L.Herbicidesgarbanzo beankabuli chickpeaWAEweeks after emergence
Type
Research Article
Information
Weed Technology , Volume 19 , Issue 4 , December 2005 , pp. 959 - 965
Copyright
Copyright © Weed Science Society of America 

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Footnotes

1 Journal Series 14910 of the University of Nebraska Agricultural Research Division.

References

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