Gilbert Fritz wrote:Can mycorrhizal fungi survive as spores? Also, in a vegetable garden, where a different kind of (usually) annual plant is grown in a bed each year, would there be many species specific mycorrhizal fungi around in any case?
Gilbert Fritz wrote:I guess to protect the living soil web, I should intersperse patches of untilled, untarped area where living symbionts can survive; this should be a permaculture practice anyway.
Gilbert Fritz wrote:As I keep thinking about this, since this mid scale garden is mostly annual, the soil disturbance may not actually be a bad thing; an annual's niche is disturbed soil. This seems like a better way of disturbing things then burning a lot of fossil fuel to mash the soil up.
Gilbert Fritz wrote:How deep do you suppose the microbe killing would go? If the tarp was tented up a bit, would that help things stay alive?
Gilbert Fritz wrote:I used two kinds of tarp; one a standard light blue one, and the other one which was silver on one side, brown on the other, with the brown up.
Under the blue tarp, the weeds went to town.
The brown tarps quickly and completely killed the top growth of all weeds, probably as you suggest due to over heating.