Skip to Main Content
Influence of mineral nutrition on susceptibility and recovery of planted seedlings of ungulate browseAuthor(s): Owen T. Burney; Douglass F. Jacobs
Source: In: Riley, L. E.; Pinto, J. R.; Dumroese, R. K., tech. cords. National Proceedings: Forest and Conservation Nursery Associations-2009. Proc. RMRS-P-62. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 27-31.
Publication Series: Proceedings (P)
Station: Rocky Mountain Research Station
PDF: Download Publication (559.73 KB)
DescriptionEfforts to minimize animal damage during reforestation in the Oregon Coast Range have had little success. Enhancing plant mineral nutrition via application of controlled-release fertilization at the time of planting may provide some relief from ungulate browse pressure due to increased height growth, but associated impacts on susceptibility of fertilized plants to browse is unknown. This study is broken into two components, a field study and a simulated browse study. The field study examines the response (in terms of growth and browse) of Douglas-fir (Pseudotsuga menziesii), western hemlock (Tsuga heterophylla), and western redcedar (Thuja plicata) to controlled-release fertilization at time of outplanting at a continuum of four fertilizer application rates (0, 20, 40, and 60 g [0, 0.7, 1.4, 2.1 oz]). The simulated browse study uses the same fertilizer treatment regime and includes three simulated browse treatments: 1) 75% terminal shoot reduction; 2) 50% reduction; and 3) no reduction (control). For the field study, browse intensity was site- and species-specific. Few patterns were observed between browse preference and fertilization. Overall, relative height growth was optimized at the middle fertilizer rates (20 to 40 g [0.7 to 1.4 oz]) for all species. Results from the simulated browse study confirm the findings from the field study that fertilization is providing significant height growth gains for non-browsed seedlings and significant recovery for those seedlings that were mechanically browsed.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- 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.
CitationBurney, Owen T.; Jacobs, Douglass F. 2010. Influence of mineral nutrition on susceptibility and recovery of planted seedlings of ungulate browse. In: Riley, L. E.; Pinto, J. R.; Dumroese, R. K., tech. cords. National Proceedings: Forest and Conservation Nursery Associations-2009. Proc. RMRS-P-62. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. p. 27-31.
Keywordsreforestation, animal damage, ungulate browse, fertilization, terpenes, Pseudotsuga menziesii, Tsuga heterophylla, Thuja plicata
- Residual densities affect growth of overstory trees and planted Douglas-fir, western hemlock, and western redcedar: results from the first decade
- Midcanopy growth following thinning in young-growth conifer forests on the Olympic Peninsula, western Washington
- Performance of four planted conifer species within artificial canopy gaps in a Western Washington Douglas-fir forest
XML: View XML