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a <br />Results and Discussion <br />Desirable perennial plant species were observed to be more vigorous <br />and numerous on all treatments at the Canon City site than on the adjacent <br />untreated dolomite waste. The seeding of selected species and the appli- <br />cation of fertilizer and mulch best explains this difference in the two <br />sites. <br />This is a harsh site for vegetation because of the high temperatures <br />and low precipitation. The second growing season, 1978, brought little <br />rain and this provided a rigorous test for the seeded vegetation. The <br />species surviving the second and third growing seasons may represent the <br />best adapted species for this location of the species tested. Shrubs with <br />their deep root system are favored in drought locations and may eventually <br />dominate reclaimed sites. Cover and biomass of seeded shrubs were found <br />to be highest on the Phosphorus/Potassium Control and the 132 kg N per <br />hectare treatments. Cover was 7.5 and 7.0 percent respectively for the <br />treatments (Figure 2). The aboveground biomass for the two treatments <br />was 113 and 127 kg per hectare respectively. Shrubs are the most success- <br />ful in these treatments because competition from grasses for limited soil <br />moisture is low. Seeded grass cover in the Phosphorus/Potassium Control <br />was 11 percent, while in the 132 kg K per hectare treatment seeded grass <br />cover was 7 percent. These values are below the high grass cover value <br />of 14 percent found in the 66 kg N per hectare treatment. The difference <br />in grass cover values hetween treatments where shrubs are successful, and <br />where they are not, suggests that decreased presence of grass may enhance <br />oppotrunities for shrub growth. <br />