Pacific Northwest Research Station

Title: Effects of different sources of fertilizer nitrogen on growth and nutrition of western hemlock seedlings.

Author: Radwan, M.A.; DeBell, Dean S.

Date: 1980

Source: Res. Pap. PNW-RP-267. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 15 p

Station ID: RP-PNW-267

Description: Twelve different nitrogen (N) fertilizer treatments were tested on potted western hemlock (Tsuga heterophylla (Raf.) Sarg.) seedlings. Fertilizers affected soil N and pH, and growth and foliar chemical composition of seedlings. Urea plus N-Serve and sulfur-coated urea appear more promising for promoting growth than other fertilizers tested. Results, however, do not explain reported variability in response of hemlock stands to N fertilization.

Keywords: Nitrogen fertilizer response, seedling growth, western hemlock, Tsuga heterophylla

View and Print this Publication (1.07 MB)

Publication Notes: 

• 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.
• You may send email to pubrequest@fs.f ed.us to request a hard copy of this publication. (Please specify exactly which publication you are requesting and your mailing address.)

 Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

Citation

Radwan, M.A.; DeBell, Dean S.  1980.  Effects of different sources of fertilizer nitrogen on growth and nutrition of western hemlock seedlings..   Res. Pap. PNW-RP-267. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station. 15 p