For those unfamiliar
with the concept, the Back
to Eden system is similar to the the instant no-till techniques I
outline in Small-Scale No-Till
Gardening Basics (which is available in print as part of The Ultimate Guide to Soil).
Basically, you lay down a cardboard kill layer in new ground, top it
off with three to four inches of compost, then add wood chips on top as
mulch.
Okay, back to merryann's
question. It is tricky to choose cover crops
that suit no-till gardening, but luckily there are several that work
well once you weed out the problematic species. The tricky part is
making sure you select cover crops that are easy to kill, either with
winter cold (probably a good choice for you), mowing at bloom time, or
hand weeding out. My top choices given those
constraints are buckwheat for summer, oats and oilseed radishes for
late summer planting with optimal fall growth, and rye for full winter
and spring coverage.
The only major difference between the Back to
Eden garden and my version of no-till from a cover-crop point of view
is using wood chips instead of straw for mulch. You'll want to rake
back the wood chips to expose bare ground before planting your cover
crops, and since wood chips will likely smother your seedlings in a way
straw won't I'd also rake
back a bit of the compost/topsoil as well. After sprinkling your
cover crop seeds, just pull the excess soil back over top (leaving the
wood chips along the edge of the bed) and you're good to go!
I'd love to see your
Back to Eden garden full of cover crops. I hope you'll drop back by
next year once you have photos to share!