• Loveless, Robert W.
  Container Corporation of America, Brewton, Alabama
  
• Pait III, John A.
  Container Corporation of America, Callahan, Florida
  
• McElwain, Tim
  Container Corporation of America, Brewton, Alabama
  

In 1983 a study was initiated in Santa Rosa County Florida, to examine the effects of intensive cultural treatments upon the survival, emergence from the grass stage and the growth of longleaf pine. Treatments in a split plot design included a factorial combination of upland bedding, fertilization and competition control. Survival was affected by the site preparation treatment. Emergence from the grass stage during the first two years after planting increased directly with the intensity of the cultural treatments. At age four, mean pine height differed among the treatments with the greatest total height correlated with increasing intensity of treatments. The total margin between the most intensively treated sites versus the control plots was 7.4 feet. Treatment effects on height appear to be additive rather than synergistic. Mean height of the pines was more strongly correlated with competition control of the hardwoods and herbaceous species than with and other treatment.