If there is a problem with poisoning the ground, I dare say it would take a very long time for the effect to occur. Would say a protective layer tarpaulin or some such thing help reduce potential poisoning?
I had a quick chat with Chesh, and we'll be using the no-dig system again, so I guess every time we build it up for the new garden, we're putting in new compost and manure and everything, so perhaps it won't be a problem.
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chiming
no subject
Date: 2009-02-05 11:10 am (UTC)From:no subject
Date: 2009-02-05 11:13 am (UTC)From:no subject
Date: 2009-02-05 11:20 am (UTC)From:Have started my bonzai and my orchid collection so it will slowly build momentum.
My folks have awesome soil at their place, when we grew sweet potatoes we often got tubers that you needed both hands to hold them.
*daydreams of giant tubas* (pun intended)