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<br />31 <br /> <br />there was no significant difference in total aboveground biomass between <br />Treatments 2-1. Treatments where higher levels of nitrogen are applied will <br />stimulate more plant growth, although not significantly (p~.10). Cover on <br />the Main Plot was greatest on Treatment 6 with Treatment 4 displaying similar <br />results and both proving higher (p`.10) than Treatment 1. Density was <br />extremely high in Treatment 7 as compared with other treatments and proved <br />significantly higher (p~.10) than all other methods used in the tdain Plot. <br />No seeded life form was dominant on all the reclamation treatments. <br />Grasses did not respond to nitrogen applications. Grasses and shrubs failed <br />to be stimulated by mulching; however, forb growth was greater when excelsior <br />matting was used than when no mulch was present, except when nitrogen was <br />withheld on Treatment 2. Successful planted species are outlined in Table 9. <br />Invaders are a major component of the vegetation at this site, and their <br />occurrence does not appear to be affected by treatment, with the exception of <br />Treatment 7 where they are the dominant plant species. Those invading grasses <br />and fortis that are prevalent (Table 9) include cheatgrass (Bromus tectorzan), <br />yellow sweetclover (MeZilotus officinalis), kochia (Kochia scoparia), and <br />flannel mullen (Verbascum thapus). <br />Species Evaluation Plot <br />This plot represents the same species as seeded in the Main Plot. The <br />r <br />r <br />M <br />species found to have goad emergence and survival following the fourth growing <br />season are E1 Reno sideoats grams (Bouteloua curtipenduZa), Paloma Indian <br />ricegrass (oryzopsis hymenoides), Nordan cres/ted wheatgrass (Agropyron <br />desertorzan), Critana thickspike wheatgrass (Agropyron dasystachyum), Sawaki <br />Russian wildrye (Elymus junceus), Palmer penstemon (Penstemon paZmeri), and <br />fourwing saltbush (Atriplex canescens). <br />