[Terrapreta] Fwd: compost and charcoal

[Michael Bailes]

>
> *A.   What materials should not be composted?*
> Most ashes are safe to mix into your compost heap, but coal ashes are not.
> They have excessive amounts of both sulfur and iron, amounts that are toxic
> to plants.
>

Do you think Gerrit that this would apply to all coals from all areas?
I am especially thinking of Victorian Brown Coal which just seems a few
steps up from compost and peat and contains 7 holds a great deal of water.
It my be that it might form a carbon-rich soil amendment on its own.(?)
m
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