Title: Sweetgum Response to Nitrogen Fertilization on Sites of Different Quality and Land Use History
Author: Scott, D. Andrew; Kaczmarek, Donald J.; Burger, James A.; Kane, Michael B.
Source: In: Gen. Tech. Rep. SRS-48. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pg. 227-232
Publication Series: Miscellaneous Publication
Description: Nitrogen (N) fertilizer management in young hardwood plantations is difficult due to our lack of understanding of the site-specific mechanisms that control tree response. Differences in landuse history and soil characteristics can alter the plant response to added N considerably. Foliage biomass, N content, N concentration, resorption, and soil N supply characteristics were measured on two 4 year-old sweetgum (Liquidambar styraciflua L.) plantations in South Carolina that represent different landuse histories and soil types. Fertilizer responses were much greater overall on a poorly drained pine cutover site compared to a well-drained ag field. Vector analysis and analysis of variance indicated that fertilization increased foliage biomass, N content, N concentration, and leaf area on the cutover site, but only increased foliar N content on the ag site. Foliar responses were negatively related to actual soil N supply, but not potentially mineralizable or total N. N fertilizer recommendations must be site-specific, and an accurate estimate of soil N supply is essential for increasing fertilization efficiency.
- 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 firstname.lastname@example.org to request a hard copy of this publication. (Please specify exactly
which publication you are requesting and your mailing address.)
XML: View XML
Scott, D. Andrew; Kaczmarek, Donald J.; Burger, James A.; Kane, Michael B. 2002. Sweetgum Response to Nitrogen Fertilization on Sites of Different Quality and Land Use History. In: Gen. Tech. Rep. SRS-48. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pg. 227-232
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility