Nitrogen Fixation for Dummies

Wiley published “Nitrogen Fixation for Dummies” on his super-cool blog, City Sown on February 24, 2010


“Fava Beans are wonder plants, not only do they grow delicious fat meaty beans, they fix nitrogen, essentially fertilizing your garden for you!  MAKE SURE to plant a thick fava bean cover crop in your garden this winter  ”

I can’t tell you how many times I’ve heard and uttered this phrase in the last couple of years.  I’ve practically forced fava beans and clover down friend’s throats, sneaking into gardens late at night to sow row after row during the winter months. The nitrogen-fixing missionary, saving depleted gardens from ruin. Last Sunday after listening to a fellow student talk about Vetch’s “nitrogen-fixing” abilities a slow, terrifying realization crept in:

I HAVE NO IDEA HOW A PLANT ACTUALLY “FIXES NITROGEN”

I felt like a doctor who flunked most of medical school, prescribing potent medications after reading glossy pharmaceutical adds in magazines.  In an effort to restore my integrity and investigate this astonishing process, I’ve compiled a detailed microbiological summary of nitrogen-fixation.

Highschool Flashback!  Let’s start with the Nitrogen Cycle:

nitrogencycle


Read the rest of “Nitrogen Fixation for Dummies” at City Sown