Show simple item record

dc.contributor.authorSheley, R. L.
dc.contributor.authorJacobs, J. S.
dc.contributor.authorVelagala, R. P.
dc.date.accessioned2020-09-23T05:35:59Z
dc.date.available2020-09-23T05:35:59Z
dc.date.issued1999-01-01
dc.identifier.citationSheley, R. L., Jacobs, J. S., & Velagala, R. P. (1999). Enhancing intermediate wheatgrass establishment in spotted knapweed infested rangeland. Journal of Range Management, 52(1), 68-74.
dc.identifier.issn0022-409X
dc.identifier.doi10.2307/4003494
dc.identifier.urihttp://hdl.handle.net/10150/643938
dc.description.abstractThe objective of this study was to compare intermediate wheatgrass establishment at 4 seeding rates, in combination with tillage and/or glyphosate (n-phosphomethyl glyine), in spotted knapweed infested rangeland. We hypothesized that the establishment of intermediate wheatgrass seedlings would be greatest at high seeding rates, while spotted knapweed density and biomass would be negatively impacted by intermediate wheatgrass densities. Glyphosate (1.16 liters a.i./ha; with and without), tillage (200 mm depth; with and without), and 4 seeding rates (0, 500, 2,500, 12,500 m-2) of intermediate wheatgrass seeds were factorially arranged in a randomized-complete-block design with 4 blocks at each of 2 sites in Montana. Treatments were applied in the fall of 1995. By the second growing season, intermediate wheatgrass failed to established in plots seeded with 500 seeds m-2, the currently recommended seeding rate. Increasing the seeding rate to 2,500 and 12,500 m-2 increased intermediate wheatgrass tiller density by 80 and 140 plants m-2, respectively, at Hamilton and 158 and 710 plants m-2, respectively, at Bozeman. At the highest seeding rate, combining tillage with glyphosate increased tiller density over 3 times more than other treatments where intermediate wheatgrass successfully established at Hamilton. However, neither tillage nor glyphosate affected intermediate wheatgrass density at Bozeman by the second growing season. In the first season, seeding rates of 0, 500, 2,500, 12,500 m-2 produced 214, 208, 176, and 114 knapweed plants m-2, respectively (LSD0.05 = 36.1) at Bozeman, but had no effect at Hamilton. Our revegetation study suggests that increasing intermediate wheatgrass seeding rates can facilitate their establishment in spotted knapweed infested rangeland. Using high seeding rates to control spotted knapweed and increase seedling establishment may enhance our ability to use revegetation as an effective weed management strategy.
dc.language.isoen
dc.publisherSociety for Range Management
dc.relation.urlhttps://rangelands.org/
dc.rightsCopyright © Society for Range Management.
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectcultivation
dc.subjectElytrigia intermedia subsp. intermedia
dc.subjectglyphosate
dc.subjectcrop-weed competition
dc.subjectstand establishment
dc.subjectsowing rates
dc.subjectplant density
dc.subjectCentaurea maculosa
dc.subjectbiomass
dc.subjectintroduced species
dc.subjectMontana
dc.titleEnhancing intermediate wheatgrass establishment in spotted knapweed infested rangeland
dc.typetext
dc.typeArticle
dc.identifier.journalJournal of Range Management
dc.description.collectioninformationThe Journal of Range Management archives are made available by the Society for Range Management and the University of Arizona Libraries. Contact lbry-journals@email.arizona.edu for further information.
dc.eprint.versionFinal published version
dc.description.admin-noteMigrated from OJS platform August 2020
dc.source.volume52
dc.source.issue1
dc.source.beginpage68-74
refterms.dateFOA2020-09-23T05:36:00Z


Files in this item

Thumbnail
Name:
9390-9271-1-PB.pdf
Size:
94.10Kb
Format:
PDF

This item appears in the following Collection(s)

Show simple item record