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Competition for soil nitrate and invasive weed resistance of three shrub-steppe growth forms


Leonard, Eamonn D. 2007. Competition for soil nitrate and invasive weed resistance of three shrub-steppe growth forms. Logan, UT: Utah State University. 78 p. Thesis.

Determining mechanisms responsible for weed resistance and invasion success are two issues that have potential in aiding successful land management decisions. The first experiment evaluates the competitive effects of an invasive annual grass downy brome (Bromus tectorum L.), an invasive biennial forb dyer's woad (Isatis tinctoria L.), and a reclamation shrub prostrate kochia (Kochia prostrata [L.] Schrad.) on nitrate acquisition, shoot and root growth, leaf carbon: nitrogen ratio, and leaf N of a perennial grass crested wheatgrass (Agropyron cristatum [L.] Gaertner x A. desertorum [Fisch. ex Link] Schultes), a native forb western yarrow (Achillea lanulosa Nutt.), and a native shrub big sagebrush (Artemisia tridentata var.wyomingensis [Beetle & A. Young] Welsh).

Keywords: soil nitrate, invasive weed resistance, shrub-steppe, downy brome (Bromus tectorum L.), dyer's woad (Isatis tinctoria L.), prostrate kochia (Kochia prostrata [L.] Schrad.)


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http://www.fs.fed.us/rm/pubs_other/rmrs_2007_leonard_e001.pdf

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Title: RMRS Other Publications: Competition for soil nitrate and invasive weed resistance of three shrub-steppe growth forms
Electronic Publish Date: April 12, 2008
Last Update:
April 12, 2008

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