Corydalis scouleri

Azotobacter Question and Answer June 2007
Richard Haard, Four Courner Nursery, Bellingham, Washington, June 11, 2007

Question by Sean Barry:
RH ". . .Learning about potential for enrichment culture of Azotobacter and trying to measure available nitrogen in this situation."

Here you mention promoting the growth of nitrogen fixing Azotobacter. I have always been interested in the possibility of inoculating charcoal with mycorrhizal fungi.