Fall-Applied Nitrogen Improves Performance of 1-0 Slash Pine Nursery Seedlings after Outplanting
Authors: Irwin, Kris M.; Duryea, Mary L.; Stone, Earl L.
Source: Southern Journal of Applied Forestry, Volume 22, Number 2, 1 May 1998 , pp. 111-116(6)
Publisher: Society of American Foresters
Abstract:This study examined the effects of supplemental nitrogen (N) applied to slash pine (Pinus elliottii var. elliottii [Engelm.]) seedlings in a north central Florida nursery. Treatments were applied during a 4 wk period during November and December, 1989, as follows: control (no fall fertilization--current nursery practice); low N (one application of NH4NO3 at 57 kg N/ha); and high N (three applications at the same rate). At time of lifting and outplanting, there were no significant morphological differences among the treatments, but foliar N concentration increased significantly in accord with treatment. Field performance was evaluated at five site-prepared locations. First-year survival of high N and low N treatments were 15 and 12% greater, respectively, than unfertilized seedlings. First-year heights of the high and low N treatments were 15 and 7% greater, respectively, than the control. South. J. Appl. For. 22(2):111-116.
Document Type: Journal Article
Affiliations: Department of Soil and Water Sciences, University of Florida, Gainesville, FL 32611-0290
Publication date: 1 May 1998
- Each regional journal of applied forestry focuses on research, practice, and techniques targeted to foresters and allied professionals in specific regions of the United States and Canada. The Southern Journal of Applied Forestry covers an area from Virginia and Kentucky south to as far west as Oklahoma and east Texas.
- Membership Information
- ingentaconnect is not responsible for the content or availability of external websites