Keeping Lead Out of Maple Syrup: A Guide to the Use of Sap Collecting and Syrup Making Equipment
Brochure explaining possible sources of lead resulting from maple equipment and how to test for it.
Institution: UVM Proctor Maple Research Center
Showing 161 – 164 of 164 resources
Fertilization of Sugarbushes Part II: Sap Volume and Sweetness
In this article we describe the effects of fertilization and liming on sugar production in maple stands.
Fertilization of Sugarbushes Part I: Physiological Effects
The goal of this project was to examine the effects of liming and fertilization on tree physiology, growth and sugar production of a moderately fertile maple stand. In this first report, we describe, in general terms, the study area, treatments, and results of liming and fertilization on tree physiology and growth.
Vigor and Nutrition vs. Sap Sugar Concentration in Sugar Maples
Although maple dieback has received considerable recent attention in the Northeast, little has been reported about the relationship between sap sugar yield and crown health or crown nutrition. We measured sap sugar concentration (sweetness) in six northern Vermont maple stands in the springs of 1990-1992, and sap volume yield from tapholes at one stand in 1991. The stands differed in average crown dieback, canopy transparency, density, and mean dbh, as well as cation exchange capacity (CEC) of upper soil horizons.