11321 Sw Terwilliger Blvd
Portland, Oregon 97219

Take an in-depth look at the nitrogen cycle. Begin outside to connect Tryon Creek's red alders to the process of nitrogen fixation. Then come inside for a presentation on how this important process relates to food production. With a thorough understanding of the nitrogen cycle, participants will be confident that they can do without harmful and expensive fertilizers. Meet at Tryon Creek Nature Center. Free. Advance registration required; call 503-636-4398 or visit www.tryonfriends.org.

Added by Upcoming Robot on April 19, 2011