Integrating cultural tools for weed management in irrigated soybean in Southern Alberta

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dc.contributor.authorJayasekara, Shamini D.
dc.contributor.authorUniversity of Lethbridge. Faculty of Arts and Science
dc.contributor.supervisorKovalchuk, Igor
dc.contributor.supervisorGeddes, Charles M.
dc.date.accessioned2023-02-28T22:16:35Z
dc.date.available2023-02-28T22:16:35Z
dc.date.issued2022
dc.degree.levelMasters
dc.description.abstractSoybean [Glycine max (L.) Merr.] is an important legume crop in western Canada. However, soybean exhibits delayed emergence and growth compared with many weeds in this region, resulting in greater reliance on herbicides. A field experiment was established near Lethbridge, Alberta, in 2020 and 2021 to determine how four cultural weed management practices [soybean row spacing (23 cm vs. 69 cm), target plant density (400,000 vs. 600,000 plants ha-1) cultivar (slender vs. bushy) and fall rye cover cropping (with vs. without)] influenced soybean productivity and weed suppression. Overall, narrow compared with wide rows increased the ability for soybean to compete with and withstand competition from weeds. Increased target densities improved weed suppression, while bushy cultivars played a supporting role. The fall rye cover crop had inconsistent effects between years. Planting a bushy soybean cultivar in narrow rows at higher densities could improve irrigated soybean productivity and weed suppression in Alberta.en_US
dc.identifier.urihttps://hdl.handle.net/10133/6441
dc.language.isoen_USen_US
dc.proquest.subject0285
dc.proquest.subject0473
dc.proquestyesYesen_US
dc.publisherLethbridge, Alta. : University of Lethbridge, Dept. of Biological Sciences
dc.publisher.departmentDepartment of Biological Sciences
dc.publisher.facultyArts and Scienceen_US
dc.relation.ispartofseriesThesis (University of Lethbridge. Faculty of Arts and Science)
dc.subjectsoybean
dc.subjectglyphosate
dc.subjectherbicide resistant weeds
dc.subjectSoybean--Weed control--Research--Alberta
dc.subjectWeeds--Cultural control--Research--Alberta
dc.subjectWeeds--Control--Research--Alberta
dc.subjectGlyphosate
dc.subjectHerbicide resistance
dc.subjectDissertations
dc.subjectAcademic
dc.subject.lcshDissertations, Academic
dc.subject.lcshSoybean--Weed control--Research--Alberta, Southern
dc.subject.lcshWeeds--Cultural control--Research--Alberta, Southern
dc.subject.lcshWeeds--Control--Research--Alberta, Southern
dc.titleIntegrating cultural tools for weed management in irrigated soybean in Southern Albertaen_US
dc.typeThesisen_US
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