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Collecting maple sap with unvented spouts, using aerial and ground lines

Informally Refereed
Download (PDF 237 KB): https://research.fs.usda.gov/download/treesearch/19774.pdf

Abstract

Two methods of using plastic tubing to collect sugar maple sap were tried: aerial lines and ground lines. Unvented spouts were used in both. We found that the sap yields collected from the aerial and ground lines were not statistically different from each other.

Citation

Smith, H. Clay; Gibbs, Carter B. 1971. Collecting maple sap with unvented spouts, using aerial and ground lines. Research Note NE-130. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 4p.