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Vacuum pumping doubles maple sap yield on flat landAuthor(s): Robert R. Morrow; Carter B. Gibbs
Source: Research Note NE-91. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5p.
Publication Series: Research Note (RN)
Station: Northeastern Research Station
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DescriptionVacuum pumping more than doubled maple sap yield from tubing installations on nearly level land during the 1968 season. Increased yields were greatest when sap had to move slightly uphill.
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CitationMorrow, Robert R.; Gibbs, Carter B. 1968. Vacuum pumping doubles maple sap yield on flat land. Research Note NE-91. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5p.
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