Effect of tillage system and eco-regional field location cluster on the emergence periodicity of wild oat and green foxtail

dc.contributor.authorMarginet, Anastasia Mariaen_US
dc.date.accessioned2007-07-12T17:47:36Z
dc.date.available2007-07-12T17:47:36Z
dc.date.issued2001-06-01T00:00:00Zen_US
dc.degree.disciplinePlant Scienceen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractKnowing the emergence periodicities of individual weed species and how tillage and eco-regional field location cluster affects them can assist producers in more accurately timing control methods. Emergence periodicities of wild oat ('Avena fatua' L.) and green foxtail (' Setaria viridis' L. Beauv.) were measured in 1999 and 2000. The survey examined 34 fields, which were under conventional- or zero-tillage. The fields were grouped into 4 eco-regional field location clusters based on field proximity to each other, soil type, soil moisture deficit and environmental conditions. Seedling emergence was tracked in the post-seeding (1999 and 2000) and pre- and post-seeding (2000) periods. Determination of the variation of emergence periodicities in different weed species due to tillage system and eco-regional field location clusters effects is the first step in developing predictive emergence models. Simple environmental conditions such as air temperature and precipitation can be used to assist producers in determining more optimal timing for weed control or crop scouting. (Abstract shortened by UMI.)en_US
dc.format.extent7211424 bytes
dc.format.extent184 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.identifier.urihttp://hdl.handle.net/1993/2516
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.titleEffect of tillage system and eco-regional field location cluster on the emergence periodicity of wild oat and green foxtailen_US
dc.typemaster thesisen_US
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