Ash, Protein, and Organo-Solubles of Jack Pine Seedlings in Relation to Soil Fertility

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Two-year-old jack pine seedlings of different origin were analyzed for their contents of ash, crude protein, volatile oils, ether extractibles, and alcohol-benzene extractibles. It is suggested that the low content of the alcohol-benzene soluble substances may be correlated with a greater susceptibility of nursery stock to parasitic organisms, and that the contents of ash and protein may serve as indicators of the balance of nursery-soil fertility.

Document Type: Journal Article

Affiliations: Professor of soils (Senior member, S.A.F.), research associate, and assistant in soils, University of Wisconsin, Madison

Publication date: November 1, 1948

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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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