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Banded Herbicide Applications and Cultivation in a Modified No-till Corn (Zea mays) System

Published online by Cambridge University Press:  12 June 2017

Allan G. Eadie ,
Clarence J. Swanton ,
James E. Shaw  and
Glen W. Anderson
Allan G. Eadie
Affiliation:
Weed Biol., Ridgetown Coll. Agric. Technol.
Clarence J. Swanton
Affiliation:
Weed Biol., Ridgetown Coll. Agric. Technol.
James E. Shaw
Affiliation:
Weed Biol., Ridgetown Coll. Agric. Technol.
Glen W. Anderson
Affiliation:
Dep. Crop Sci., Univ. Guelph, Guelph, ON, Canada N1G 2W1
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Abstract

The acceptance of no-till crop production systems has been limited due to expected problems with weed management. Field experiments were established at two locations in Ontario in 1988 and one location in 1989. Band or broadcast applications of preemergence (PRE) combinations of high or low label rates of atrazine with or without metolachlor or inter-row cultivation, were evaluated for their effectiveness in controlling annual weeds in no-till corn. At each location, different herbicide and cultivation combinations were required to achieve adequate weed control. Corn grain yield was equivalent regardless of whether herbicides were applied as a band or broadcast treatment at all three sites. At two of the three sites, one cultivation combined with herbicides applied as a band was adequate to maintain weed control and corn grain yields. Selective application of herbicides in bands represented an approximate 60% reduction in total herbicide applied into the environment. The integration of a shallow post-plant inter-row cultivation combined with the soil conservation attributes of no-till, would enhance the sustainability of a modified no-till corn production system.

Keywords

Atrazine, 6-chloro-N-ethyl-N′-(1-methylethyl)-1,3,5-triazine-2,4-diaminemetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamidecorn, Zea mays L. ‘Dekalb 524’, ‘Hyland 2803’, ‘Pioneer 3790’ and ‘Pioneer 3902’Integrated weed managementreduced herbicide useatrazinemetolachlor
Type
Research
Information
Weed Technology , Volume 6 , Issue 3 , September 1992 , pp. 535 - 542
Copyright
Copyright © 1990 by the Weed Science Society of America 

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