You are here: Home
/ Publication Information
Title: Growth and nutrition response of young sweetgum plantations to repeated nitrogen fertilization on two site types
Author: Scott, D. Andrew; Burger, James A.; Kaczmarek, Donald J.; Kane, Michael B.
Source: Biomass and Bioenergy 27 (2004) 313–325
Publication Series: Miscellaneous Publication
Description: Short-rotation intensive tree culture is being investigated in the southern United States as a method of producing hardwood fiber, but little is known about the early productivity and nutritional needs of these systems, especially on different site types. We studied the growth and foliar nutrition response of two sweetgum (Liquidambar styraciflua L.) plantations on a converted agricultural field and a pine cutover site to biannual applications of three nitrogen (N) fertilizer rates: 0, 56, and 112 kg N ha−1. The trees did not respond to treatment at any age on the agricultural field site, but the fertilized trees on the cutover site had about 60% greater biomass at ages 5 and 6. Fertilization doubled foliar biomass on the cutover site in the years fertilizer was applied. Stem biomass was directly related to foliar biomass, but the relationship was age-specific at both sites. Stem biomass was also related to the foliar N concentration. Foliar critical values of N were about 18 g N kg−1. Foliage phosphorus (P) and potassium (K) contents were diluted by the N fertilization-induced growth responses at both sites. Fertilization of young intensive-culture sweetgum plantations is necessary for optimum foliar N concentrations and foliar and stem biomass production, but is site-specific.
Keywords: Short-rotation, Woody crops, Nitrogen fertilization, Sweetgum, Bioenergy
- 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 email@example.com 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; Burger, James A.; Kaczmarek, Donald J.; Kane, Michael B. 2004. Growth and nutrition response of young sweetgum plantations to repeated nitrogen fertilization on two site types. Biomass and Bioenergy 27 (2004) 313–325
Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility