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Project Title: Response of Young Lodgepole Pine to Nitrogen and Sulphur Fertilization
Project Number: EP 886.09 Installation #7
District: Rocky Mountain Forest District
Location: Gold Creek
Lat. 49 19'N - Long. 115 32'W		 Opening # 82G033-038
Principal Researcher: R. P. Brockley
Kalamalka Forestry Centre
Vernon, BC		 Phone: (250) 260-4768
e-mail:
Rob.Brockley@gov.bc.ca

Objectives:

  • To determine the response potential of young lodgepole pine to nitrogen and nitrogen + sulphur fertilization.
  • To determine the effect of sulphur application rate on response to N+S fertilization.
  • To determine the effect of form of sulphur on response to N+S fertilization.
  • To examine the nature of a sulphur source x application rate interaction.
  • To obtain soil and foliar analysis data to assist in deficiency diagnosis and the interpretation and prediction of fertilization response.

Experimental Design:

Treatments:

  • There are nine treatments consisting of factorial combinations of nitrogen and various forms and rates of sulphur application.

Layout:

  • Each treatment is applied to fifteen, 5-m radius "single- tree" plots (9 treatments * 15 reps/treatment = 135 plots) arranged in a completely randomized design.
  • The stand was 27 years old at the time of installation establishment.
  • The stand was thinned to 1100 stems/ha in 1979.

History:

  • 1989 Installation establishment and initial assessments
  • 1990 Foliar sampling and assessment of foliage mass response
  • 1992 -1995 Assessment on 3-year schedule

Status: Dormant

Reports and Publications:

Brockley, R. P. and F. J. Sheran. 1994. Foliar nutrient status and fascicle weight of lodgepole pine after nitrogen and sulphur fertilization in the interior of British Columbia. Can. J. For. Res. 24: 792-803.

Brockley, R.P. 1996. Lodgepole pine nutrition and fertilization: a summary of B.C. Ministry of Forests research results. Forestry Canada and BC Ministry of Forests, Victoria. Forest Resource Development Agreement, Rep. 266. 

Brockley, R.P. 2001. Foliar sampling guidelines and nutrient interpretative criteria for lodgepole pine. B.C. Min. For., Research Branch, Victoria. Extension Note 52.

Brockley, R.P. 2001. Fertilization of lodgepole pine in western Canada. In Proc. Enhanced Forest Management: Fertilization and Economics Conference, March 1-2, 2001, Edmonton. pp. 43-54.

Thomson, A, R. Brockley, and J. Saini. 2001. Lodgepole pine foliar nutrient diagnosis and fertilizer advisory system. Online. Canadian Forest Service, Pacific Forestry Centre, Victoria.

Comments:

This installation is established in the same stand as EP 886.01 Installation #3.