Many black walnut plantations have been successfully established in recent years, but not all have continued to grow well after establishment. In one 10-year-old plantation in southern Illinois, elimination of the fescue sod understory by annual cultivation for 5 years produced trees that were 69% larger in diameter at age 15 than those in untreated areas. In a second plantation, 17 years old at the time of treatment, elimination of the fescue by either cultivation or the establishment of hairy vetch resulted in a 250% increase in diameter growth over the next 3 years. For many slow-growing black walnut plantings, some form of understory vegetation management will be required to meet the goals of short-rotation forestry. North. J. Appl. For. 3:49-51, June 1986.
Document Type: Journal Article
North Central Forest Experiment Station, Forestry Sciences Laboratory, Carbondale, IL 62901
Publication date: June 1, 1986
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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 Northern Journal of Applied Forestry covers northeastern, midwestern, and boreal forests in the United States and Canada.