Skip to Main Content
Soil reaction and germination of Douglas-fir seed.Author(s): Robert F. Tarrant
Source: PNW Old Series Research Notes No. 105, p. 1-4
Publication Series: Research Note (RN)
Station: Pacific Northwest Research Station
PDF: Download Publication (310 KB)
DescriptionWood ash and its accompanying alkalinity have sometimes been cited as being harmful to germination of tree seed on slash-burned forest land. Unasylva, the United Nations forestry publication, recently carried a report of research in British Columbia on the effect of slash burning on germination and initial survival of lodgepole pine and Douglas-fir. One finding was that "There was no germination where ash was added to unburned soil, due to the increased pH of the soil, the hardening of the ash layer, and exclusion of oxygen and high concentration of the nutrient solution
- Visit PNW's Publication Request Page to request a hard copy of this publication.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationTarrant, Robert F. 1954. Soil reaction and germination of Douglas-fir seed. PNW Old Series Research Notes No. 105, p. 1-4
- Early survival and height growth of Douglas-fir and lodgepole pine seedlings and variations in site factors following treatment of logging residues.
- Natural regeneration of lodgepole pine in south-central Oregon
- Mount St. Helens ash and mud: Chemical properties and effects on germination and establishment of trees and browse plants.
XML: View XML