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Response of Slash Pine to Different Spacings and Site-Preparation Treatments

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Seventeen years after installation, an experiment testing the effect of spacing and four site-preparation treatments yielded data on growth, volume, disease incidence, and survival of slash pine (Pinus elliottii var. elliotti Engelm.) Across all spacings and treatments, growth and yield were generally greater on better drained soils. Spacing had a decided effect on growth and volume: wider spacings resulted in greater d.b.h. but reduced volume; the closer the spacing, the more merchantable volume was produced; 6' x 12' spacing seems the most acceptable compromise. Site-preparation methods had a visible effect on disease incidence and survival: burn-bedding and burn-harrowing enhanced growth and increased volume yield and survival; burn-scalping proved detrimental. Although stem canker infection was higher on intensively prepared plots, they produced the greatest wood yield.

Document Type: Journal Article

Affiliations: Manager, Forest Improvement Department, Brunswick Pulp Land Company, Brunswick, Georgia

Publication date: August 1, 1979

More about this publication?
  • 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.
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