Vacuum pumping increases sap yields from sugar maple trees

Barton M. Blum; Melvin R. Koelling

Treesearch

Vacuum pumping increases sap yields from sugar maple trees

Informally Refereed

Authors:

Barton M. Blum, Melvin R. Koelling

Year:

1968

Type:

Research Paper

Station:

Northern Research Station

Source:

Res. Pap. NE-106. Upper Darby, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 14 p.

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Download (PDF 1.88 MB): https://research.fs.usda.gov/download/treesearch/3924.pdf

Citation

Blum, Barton M.; Koelling, Melvin R. 1968. Vacuum pumping increases sap yields from sugar maple trees. Res. Pap. NE-106. Upper Darby, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 14 p.