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Soil Standards for Planting Wisconsin Conifers

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Because of the previous depletion of soils by fires, farming, or erosion, many Wisconsin forest plantations now show a rate of growth inadequate to return the accrued cost of planting and current expenses. To reduce in the future financial liabilities, soils and growing stock of 315 plantations were subjected to field and laboratory analyses. The results provided sufficient information to determine the minimum levels of soil fertility factors satisfying the requirements of jack pine, red pine, white pine, and white spruce. The critical levels were established as averages of the least values whose C quotient (±x/d) is smaller than 0.05 probability. The significance of these levels in terms of the expected site index was checked by multiple correlation equations. On short rotations the minimum annual increment promised by the suggested soil fertility standards is between 0.5 and 0.7 cords per acre.

Document Type: Journal Article

Affiliations: Professor of Soil Science, University of Wisconsin, Madison

Publication date: 1966-06-01

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  • 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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    June 1, 2016 to Feb. 28, 2017

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