Skip to main content

The Effect of Fertilization on Growth and Mycorrhizae Numbers in 11-Year-Old Loblolly Pine Plantations

Buy Article:

$21.50 plus tax (Refund Policy)

In a field fertilization study with 11-year-old Pinus taeda fewer mycorrhizal root tips were found in all plots which were fertilized with N except in plots fertilized with N+P+K than were found in nontreated plots or plots fertilized with P only. Nitrogen appeared to be primarily responsible for the fewer number of mycorrhizal root tips when N and P were applied together, since P alone did not affect numbers of mycorrhizal tips. Most differences between N fertilized plots and those not receiving N fertilizer occurred during the first 6 months after fertilization. Height and diameter of Pinus taeda were increased by all fertilization treatments containing N but not by P alone. Concentrations of N increased in the needles of trees in plots which were fertilized with N. Numbers of mycorrhizal tips were inversely correlated with height and diameter growth. This growth was directly correlated with N concentrations in the needles. Phosphorus fertilization increased relative populations of Cenococcum graniforme mycorrhizae and the N+P+K treatment increased the relative population of a second mycorrhizal type. All fertilization treatments decreased the relative population of a third mycorrhizal type. The relative populations of two of the remaining eight types of mycorrhizae found were reduced by some, but not all, fertilization treatments containing either P or N. Manipulation of mycorrhizae type by fertilization may be a useful technique in plantation management. Forest Sci. 23:37-44.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Pinus taeda; ectomycorrhizae; soil microbiology; symbiosis

Document Type: Journal Article

Affiliations: Director of the North Carolina State Forest Fertilization Cooperative, School of Forest Resources, North Carolina State University, Raleigh, North Carolina

Publication date: 1977-03-01

More about this publication?
  • Important Notice: SAF's journals are now published through partnership with the Oxford University Press. Access to archived material will be available here on the Ingenta website until March 31, 2018. For new material, please access the journals via OUP's website. Note that access via Ingenta will be permanently discontinued after March 31, 2018. Members requiring support to access SAF's journals via OUP's site should contact SAF's membership department for assistance.

    Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
    Forest Science is published bimonthly in February, April, June, August, October, and December.

    2016 Impact Factor: 1.782 (Rank 17/64 in forestry)

    Average time from submission to first decision: 62.5 days*
    June 1, 2016 to Feb. 28, 2017

    Also published by SAF:
    Journal of Forestry
    Other SAF Publications
  • Submit a Paper
  • Membership Information
  • Author Guidelines
  • Podcasts
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more