Showing 31 – 40 of 101 matching resources
Regardless of the availability and guidance provided, maple producers should clearly understand that the use of isopropyl alcohol in maple tubing systems anywhere in the United States is a violation of federal law.
In general, it is presumed that any effect of Òspout colorÓ on sap yield arises due to thermal warming of darker-colored spouts during sunny periods. Darker-colored spouts warm faster and the spout temperature can rise considerably above air temperature when hit by the sun compared to lighter-colored spouts. To assess the effect of Òspout colorÓ on sap yield, we conducted a multi-year study at the University of Vermont Proctor Maple Research Center in Underhill, Vermont. Twelve treatment plots were randomly assigned a different spout type, with one mainline and releaser for each plot.
Two main issues relate to the sustainability of maple sugaring; tree wounding and sugar removal. In other words, does a tapped maple tree grow more wood than is compartmentalized (functionally “removed by the tree’s normal wound response process) each year and/or does sap collection take more sugar from the tree than can be readily replaced through photosynthesis? These two issues, although separate in some respects, are inextricably intertwined.
A presentation on the effects of vacuum on sap yield and ways to optimize tubing systems.
Between 2008 and 2011 we conducted a series of controlled experiments performed with commercial maple equipment to investigate the potential effects of the use of RO on the composition, properties, and flavor of the maple syrup produced.
An Excel spreadsheet that can be used to determine the effects of replacing or cleaning spouts and droplines on sap yield and profit.
Calculates projected sap yield and net profits based upon known relationships between tubing aging and various management strategies under vacuum conditions.
Tapping depth strongly influences both sap yield and wounding. Numerous studies have focused on the amount of sap produced with ifferent depths, the most extensive work conducted by Morrow (1963), who found a tendency for increasing sap yields with increasing taphole depth. However, this work was conducted on gravity with 7/16” tapholes, so is less informative to most producers using 5/16” spouts and vacuum.
Feedback received from early users of Leader check-valve adapters, developed by the UVM Proctor Maple Research Center.
Presents research on taps and tapping practices to maximize yield. Also explains sap flow and tree wounding.