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• P, K, CEC) by a contract soils testing laboratory using standardized methods and <br />protocols for those processes. Root zone soil samples were collected periodically during <br />the growing season for gravimetric soil moisture determination. Soil samples were also <br />submitted to the soils testing laboratory for determination of other chemical <br />constituents. <br />Results of this study confirm our hypothesis that best survival and growth for <br />aspen were achieved with the use of landscape fabric. Irrigation of aspen also increased <br />some growth parameters, but the response was less from irrigation than that from <br />landscape fabric. Serviceberry did not respond to landscape fabric or to irrigation <br />treatment (Figures 4 -6). It is likely that the aspen responded more to treatment since <br />these plants were larger and less subject to transplant shock than the smaller <br />serviceberry. Very little growth was evident on the serviceberry plants, and it is <br />• expected that first year response may have been concentrated in survival and root <br />growth. Soil chemical analyses indicated no deficiencies in nutrients that should limit <br />growth of aspen or serviceberry. <br />Figure 4. Serviceberry at Seneca upper Yoast planting site, Left is June 2008, right <br />is October 2008. There was no difference in growth or survival between treatments. <br />• <br />16 <br />