Hi everyone, I m writing to pass along information about a great session I went to at the Southern Sustainable Agriculture Working Group (SSAWG) conference.
Message 1 of 1
, Feb 15, 2013
I'm writing to pass along information about a great session I went to at the Southern Sustainable Agriculture Working Group (SSAWG) conference. The session was led by "Ray the Soil Guy", an NRCS agent who "gets" soil health, including soil biology! He has a Vimeo page:
I think the one labeled "Soil Slake and Infiltration Tests - Live Demo" may be a presentation similar to what he did at SSAWG, but I haven't had time to watch it yet.
The thing about his presentation that sticks out most in my mind was a slide of data that showed that a cover crop mix of at least 8 different types of seed did better than any mix of fewer seeds. After 8, the curve started to level off. He also recommended that at least 3 of the 8 seeds be legumes.
I think that this recommendation for 8 seeds stems from research by Dr. David Tilman. Turns out he's a big-time ecologist. (If you're
interested, just search on "David Tilman Number of Species needed in a Drought Situation" and you'll get a bunch of hits.)