Douglas-fir survival and growth in response to spring planting date and depth

R. O. Strothmann

Treesearch

Douglas-fir survival and growth in response to spring planting date and depth

Informally Refereed

Authors:

R. O. Strothmann

Year:

1971

Type:

Research Note

Station:

Pacific Southwest Research Station

Source:

Res. Note PSW-RN-228. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 6 p

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Download (PDF 1.06 MB): https://research.fs.usda.gov/download/treesearch/30862.pdf

Abstract

Douglas-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.

Keywords

Pseudotsuga menziesii var menziesii, planting depth, seedling survival, height increment

Citation

Strothmann, 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