Persistent Link:
http://hdl.handle.net/10150/219954
Title:
Evaluation of Preemergence Herbicides for Early Season Onion Weed Control
Author:
Knowles, Tim C.; Poole, Charles
Issue Date:
Oct-1999
Publisher:
College of Agriculture, University of Arizona (Tucson, AZ)
Journal:
Vegetable: A College of Agriculture Report
Abstract:
Two experiments were conducted to determine the efficacy and safety of soil applied broadcast preemergent herbicides including Nortron, Prowl, Prefar, and Prefar + Prowl combinations applied at planting to fall seeded dry bulb onions. Crop stand reductions ranging from 10 to 33 percent resulted from Prowl 3.3EC use rates of 1.2 and 2.4 pt/acre. Prowl 3.3EC applied at 0.6 pt/acre, Prefar 4E applied at 4 and 6 qt/acre, Nortron 4SC applied at 2 pt/acre, and the combination of 0.6 pt Prowl 3.3 EC plus Prefar 4E were safe on fall seeded onions. Prefar plus Prowl combinations also provided winter weed control equal to or better than the standard 14 lb/acre Dacthal 75WP.
Keywords:
Agriculture -- Arizona; Vegetables -- Arizona; Vegetables -- Herbicides
Series/Report no.:
AZ1143; Series P-118

Full metadata record

DC FieldValue Language
dc.titleEvaluation of Preemergence Herbicides for Early Season Onion Weed Controlen_US
dc.contributor.authorKnowles, Tim C.en_US
dc.contributor.authorPoole, Charlesen_US
dc.date.issued1999-10-
dc.publisherCollege of Agriculture, University of Arizona (Tucson, AZ)en_US
dc.identifier.journalVegetable: A College of Agriculture Reporten_US
dc.description.abstractTwo experiments were conducted to determine the efficacy and safety of soil applied broadcast preemergent herbicides including Nortron, Prowl, Prefar, and Prefar + Prowl combinations applied at planting to fall seeded dry bulb onions. Crop stand reductions ranging from 10 to 33 percent resulted from Prowl 3.3EC use rates of 1.2 and 2.4 pt/acre. Prowl 3.3EC applied at 0.6 pt/acre, Prefar 4E applied at 4 and 6 qt/acre, Nortron 4SC applied at 2 pt/acre, and the combination of 0.6 pt Prowl 3.3 EC plus Prefar 4E were safe on fall seeded onions. Prefar plus Prowl combinations also provided winter weed control equal to or better than the standard 14 lb/acre Dacthal 75WP.en_US
dc.subjectAgriculture -- Arizonaen_US
dc.subjectVegetables -- Arizonaen_US
dc.subjectVegetables -- Herbicidesen_US
dc.identifier.urihttp://hdl.handle.net/10150/219954-
dc.relation.ispartofseriesAZ1143en_US
dc.relation.ispartofseriesSeries P-118en_US
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