Pole-Sized Black Walnut Respond Quickly to Crown Release

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After four years black walnut trees given complete crown release were growing twice as fast as trees not released. Dominant and codominant trees with large crowns responded best to release but strong intermediates also responded. Some pole-sized trees had bole sprouts whether released or not; however, sprouting was practically nil on small sawtimber-sized trees. Potential walnut-crop trees should be released often enough to provide for crown expansion.

Document Type: Journal Article

Affiliations: Research Forester, North Central Forest Expt. Sta., Forest Service, U.S. Dept. Agric., field Office, maintained in cooperation with Southern Illinois University, Carbondale

Publication date: June 1, 1967

More about this publication?
  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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