Vacuum pumping doubles maple sap yield on flat land

Robert R. Morrow; Carter B. Gibbs

Vacuum pumping doubles maple sap yield on flat land

Informally Refereed

Authors:

Robert R. Morrow, Carter B. Gibbs

Year:

1968

Type:

Research Note

Station:

Northern Research Station

Source:

Research Note NE-91. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 5p.

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Abstract

Vacuum 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.

Citation

Morrow, 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.