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Douglas-fir survival and growth in response to spring planting date and depthAuthor(s): R. O. Strothmann
Source: Res. Note PSW-RN-228. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p
Publication Series: Research Note (RN)
Station: Pacific Southwest Research Station
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DescriptionDouglas-fir seedlings were planted by four methods in late February and late March on hot, south-facing slopes in northwestern California. Besides standard planting, the techniques used included deep planting at two different depths, and shading the lower stem. The differences in survival after 3 growing seasons were not statistically significant, but deep planting had helped height growth. Excellent survival in all treatments was probably the result of good stock, careful handling and planting, proper site preparation, and timely rainfall the first spring.
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CitationStrothmann, R. O. 1971. Douglas-fir survival and growth in response to spring planting date and depth. Res. Note PSW-RN-228. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p
KeywordsPseudotsuga menziesii var. menziesii, planting depth, seedling survival, height increment
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