I've noticed something new in this year's spring gardening videos and the blogsphere, biochar. "[B]iochar can increase soil fertility, raise agricultural productivity..."
Last year I saw a video of the guy organotill.org show how he grows mycchorizal fungi:
Then he mixed the biochar and mycchorizal fungi. The fungi find a home in the soil stable biochar. As you know from previous posts, mycchorizal fungi acts like a root extender. Adding a stable home for it, by way of using biochar, grants the fungi longevity in your soil. Thus moving toward a true no-till garden.
Here are several other videos where you can learn more about biochar:
One way to make biochar"