Fertilization and Competition Control Accelerate Early Southern Pine Growth on Flatwoods
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.
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Document Type: Journal Article
Affiliations: University of Florida, Gainesville, FL 32611
Publication date: 01 May 1988