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Long-term impact of liming on growth and vigor of northern hardwoods

Sugar maple (Acer saccharum Marsh.) is a keystone species in the northern hardwood forest, and decline episodes have negatively affected the growth and health of sugar maple in portions of its range over the past 50+ years. Crown health, growth, survival, and flower and seed production of sugar maple were negatively affected by a widespread decline event in the mid-1980s on the unglaciated Allegheny Plateau in northern Pennsylvania. A long-term liming study was initiated in 1985 to evaluate responses to a one-time application of 22.4 MgáhaÐ1 of dolomitic limestone in four northern hardwood stands.

Publication:
Canadian Jounal of Forest Research
Date:
May 25, 2011

Root pressure in trees: a spring phenomenon

Root pressure occurs when the soil begins to warm, and when snow has melted, and icy water from snow melt has largely drained from the soil, forest soils warm quickly.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
May 1, 2011

Why do some maple trees produce more sap?

Many researchers, in addition to many sugarmakers, have observed that there is a great range in the amount of sap produced from individual trees in a forest. Understanding, and perhaps predicting the different performances of the trees in a sugarbush is an aspect of maple physiology that remains fascinating.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
April 1, 2011

Pricing sap

How much money should you expect to make selling sap? There are many factors to consider.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
March 1, 2011

2010 Sugaring Season Survey

In mid-April 2010, an invitation to participate in a survey was sent to subscribers of two maple forums. The survey was designed to get some basic information about the operations of the respondents, to describe sanitation practices (changing tubing, spouts, etc.) and to get feedback from users about the Leader Check-valve adapter.

Publication:
Maple Syrup Digest
Date:
February 1, 2011

Conducting and understanding experiments in maple operations

Research studies must follow certain rules in order for the findings to be valid. This column discusses a few of these simple rules: comparison of treatment vs. control, replication, dealing with natural variation, and statistical validity.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
February 1, 2011

Energy use in maple operations

A summary of a presentation on energy efficiency in maple production.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
January 1, 2011

Why change the maple grading system?

Thoughts on the value of implementing the new maple grading system.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
December 1, 2010

More invasive plants of the sugarbush

Identifying and removing invasive plants when they are few and small is the only way to keep from having a permanent infestation, one that will be a constant annoyance and expense.

Publication:
Farming, the Journal of Northeast Agriculture
Date:
November 1, 2010