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Regional variation in growth response of Coastal Douglas-fir to nitrogen fertilizer in the Pacific Northwest.Author(s): C.E. Peterson; J.W. Hazard
Source: Forest Science. 36(3): 625-640
Publication Series: Scientific Journal (JRNL)
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DescriptionHypothesis testing for differences in growth responses among physiographic strata, thinning levels, and fertilizer dosage levels resulted in a set of empirical models for predicting volume increment response of even aged coastal Douglas-fir to nitrogen fertilizer. Absolute and percent responses are estimated for stands both thinned and unthinned, as a function of dosage levels and physiographic provinces. Although not "highly" significant, the physiographic factor was retained in the models for purposes of refinement.
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CitationPeterson, C.E.; Hazard, J.W. 1990. Regional variation in growth response of Coastal Douglas-fir to nitrogen fertilizer in the Pacific Northwest. Forest Science. 36(3): 625-640
KeywordsResearch, physiographic strata, thinning, fertilizer response, predictive models
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