Early-Season Weed Competition in Corn

dc.contributor.author Hartzler, Robert
dc.date 2018-02-13T07:23:34.000
dc.date.accessioned 2020-06-30T03:52:29Z
dc.date.available 2020-06-30T03:52:29Z
dc.date.copyright Thu Jan 01 00:00:00 UTC 2009
dc.date.embargo 2013-03-14
dc.date.issued 2009-01-01
dc.description.abstract <p>Protecting crop yields and preventing increases in weed populations are the primary reasons for controlling weeds. Weed management systems that rely on postemergence control assume that crops can tolerate competition for certain periods of time without suffering yield losses. However, once competition between the crop and weeds begins, the magnitude of yield loss increases rapidly as weed control is delayed. Our inability to accurately predict when weeds first begin to affect yield will always create a level of risk when relying on total postemergence weed control programs. Preemergence herbicides greatly reduce this risk by reducing the populations of weeds that emerge with the crop. The objective of this research was to quantify yield losses associated with delays in controlling weeds that emerge with or shortly following corn.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/farms_reports/582/
dc.identifier.articleid 1579
dc.identifier.contextkey 3904093
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath farms_reports/582
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/36531
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/farms_reports/582/EarlySeasonWeed.pdf|||Sat Jan 15 01:01:49 UTC 2022
dc.subject.disciplines Agricultural Science
dc.subject.disciplines Agriculture
dc.subject.disciplines Agronomy and Crop Sciences
dc.subject.keywords Agronomy
dc.title Early-Season Weed Competition in Corn
dc.type article
dc.type.genre northern_research_and_demonstration_farm
dspace.entity.type Publication
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