David will be speaking at the 2012 NOFA (Northeast Organic Farmers Association) Summer Conference on Friday, August 10, 2012
from 2-3:30pm in Amherst, Massachusetts (USA).

Introduction to Soil Fertility
I will be teaching the basics of soil fertility, including the physical, mineral, and biological components of soil. I'll cover clay, organic matter, cation exchange capacity, reading soil tests, microbes contribution to soil fertility, and the role of organic matter for nutrient storage, carbon sequestration, and plant growth.

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We periodically run classes and speak at seminars.

If you are interested in a class or seminar, or are looking for a speaker, please contact us.