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Fertilization and Competition Control Accelerate Early Southern Pine Growth on Flatwoods

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Combinations of several levels of three factors (species, competition and nutrients) that influence southern pine growth were tested in three replications of a 2 x 2 x 2 factorial experiment containing 40-tree measurement plots plus buffer zones. A moisture gradient over replications, augmented by irrigation, permitted evaluation of a fourth factor (moisture regime). In addition, individual trees of selected families of slash pine (Pinus elliottii Engelm. var elliottii) permitted evaluation of a fifth factor (progeny). Of all factors investigated, nutrients and competition were by far the most important in limiting tree and stand growth on a some-what poorly drained flatwoods spodosol. Continuous elimination of either nutrient deficiencies or interspecific competition quintupled stand volume at age 4 years. The combined effect of both cultural practices was more than tenfold increase in stand volume. South J. Appl. For. 12(2):116-121.

Document Type: Journal Article

Affiliations: University of Florida, Gainesville, FL 32611

Publication date: 1988-05-01

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  • 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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