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<br />24 <br />A mixture of native and introduced grasses, forbs, and shrubs was <br />broadcast over the Main Plot in December 1976 (Table 7). The seed was applied <br />at 14.40 kg pure live seed (PLS)/ha (634 PLS/mz) and covered by light <br />raking. M~.ched subplots were covered with excelsior matting and held in <br />place with wire staples. <br />CF&I personnel designed and established an irrigation system in July <br />1977. The system, however, did not provide even water coverage, and records <br />were not kept of the amount of water applied. Irrigation was not used in any <br />of the following growing seasons. <br />Livestock damaged the plot in the fall of 1977. A barbed wire fence <br />was constructed around the plot perimeter in the same year, and no further <br />livestock grazing has occurred. Limited grazing by rabbits, deer, and other <br />wildlife species has been observed as recent as the summer of 1980. <br />Species Evaluation Plot <br />Sixteen species of grasses, forbs, and shrubs were seeded in two 1.2-m <br />rows east of the t4ain Plot (Figure 5). The plot was uniformly fertilized with <br />220 kg PzOs/ha, 66 kg K20/ha, and 66 kg NJ ha. Seeding was done by hand in <br />December of 1976. The species used in this trial are the same as listed in <br />Table 7. <br />Results <br />,J. ; .. Al ,.. <br />Treatment differences, averaged over three replications, are illustrated <br />in Figures 5-8 and Table 8. Treatments 6 and 2 produced significantly (p_`.10) <br />more biomass than Treatment 1, with Treatment 5 indicating a marginal differ- <br />ence from Treatment 1. Treatment 6 produced the greatest biomass; however, <br />