Vacuum Pumping Increases Sap Yields from Sugar Maple Trees PDF Download

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Vacuum Pumping Increases Sap Yields from Sugar Maple Trees

Vacuum Pumping Increases Sap Yields from Sugar Maple Trees PDF Author: Barton M. Blum
Publisher:
ISBN:
Category : Maple syrup
Languages : en
Pages : 18

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Book Description
S2In the spring of 1967, a vacuum pump was installed at a sugarbush located in Underhill, Vermont. This work proceeded in two phases: an individual-tree study designed to determine if sap could be drawn out of a tree in sufficient quantities to account for large yield differences; and a large-scale study of the effects of sustained levels of vacuum on yields from a nearly commercial-size network of tubing. S3.