Journal
NEW FORESTS
Volume 40, Issue 1, Pages 119-130Publisher
SPRINGER
DOI: 10.1007/s11056-009-9187-y
Keywords
Quercus rubra; Hardwood plantings; Artificial regeneration; Weed control; Fertilization
Categories
Funding
- USDA CSREES
- NC State Hardwood Research Cooperative
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The limited success of methods to naturally regenerate northern red oak (Quercus rubra L.) has increased the use of artificial techniques to improve overall oak composition. Enrichment plantings are often recommended as a means to supplement species composition within the existing natural reproduction. Previous enrichment efforts have often resulted in low survival and poor growth, generally due to poor planting stock quality and a lack of competition control. In this study, high quality northern red oak seedlings were established on four recently harvested sites in western North Carolina using one of four competition control treatments (untreated, year 1 control, year 2 control or a weed mat) in a 1.2 x 1.2 m area around each seedling with or without a soil fertility amendment. The 3 year results show that competition control and fertilization treatments had few positive impacts on survival and growth of the planted seedlings. These results suggest that either the treatment area was insufficient to adequately release the seedlings, or other factors like belowground competition from existing advance reproduction and/or stump sprouts may be important determinants of the overall success of northern red oak enrichment plantings on recently harvested sites.
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