Foliar nutrient levels in Douglas-fir plantations 25 years after stump removal and fertilization to control Phellinus weirii

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Foliar nutrient levels in Douglas-fir plantations 25 years after stump removal and fertilization to control Phellinus weirii

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Title: Foliar nutrient levels in Douglas-fir plantations 25 years after stump removal and fertilization to control Phellinus weirii
Author: Rotraemel, Naomi Ananda
Abstract: Removal of stumps and fertilization after harvesting have been proposed to reduce root diseases in succeeding stands. Potential impacts such as compaction and loss of soil C or N could limit the use of this technique. This research examined forest soils and foliar nutrient levels in five Pacific Northwest stands 22-29 years after stump removal and fertilization with N. A non-significant trend of lower foliar N was also observed with stump removal. These results were consistent in all five soil types. This reduction in the organic component of the soil may be a concern for nutrient cycling and long-term productivity on poor sites.
Description: Thesis (Master's)--University of Washington, 2012
URI: http://hdl.handle.net/1773/20553
Author requested restriction: No embargo

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