Skip to Main Content
The short-term effects of fertilization on loblolly pine photosynthesis and biomassAuthor(s): Nathan King; John Seiler; Thomas R. Fox; Kurt Johnsen
Source: Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 113-116
Publication Series: Miscellaneous Publication
PDF: View PDF (365 KB)
DescriptionThe physiological processes in loblolly pine leading to enhanced growth in response to fertilization have not been clearly established. We tracked net photosynthesis (Pn), height, basal diameter, and volume changes in loblolly pine seedlings in response to fertilization during the entire 2004 growing season. Pn measurements were conducted prior to fertilization and after fertilization in early May. The seedlings that received fertilization showed an increase in Pn rates above the controls for most of the growing season. Also, the fertilized seedlings had height, basal diameter, and volume increases of 10, 13, and 34 percent over the unfertilized seedlings. We conclude that fertilization led to an initial increase in Pn rates, which helped create extra photoassimilate to be used in building larger leaf areas, which in turn led to more above ground biomass.
- 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.)
- 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.
CitationKing, Nathan; Seiler, John; Fox, Thomas R.; Johnsen, Kurt. 2006. The short-term effects of fertilization on loblolly pine photosynthesis and biomass. Gen. Tech. Rep. SRS-92. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southern Research Station. pp. 113-116
- Influence of precommercial thinning and fertilization on total stem volume and lower stem form of loblolly pine
- Seasonal Photosynthesis in Fertilized and Nonfertilized Loblolly Pine
- Seasonal and cumulative loblolly pine development under two stand density and fertility levels
XML: View XML