"Matthew Ota" wrote in message ...
There is no such thng as lunar "soil". Technically, the powder on the
surface of the boon and the broken rocks eneath are called "regolith"
which is a soil-like material without any biological content.
The same goes for Mars and the asteroids; there is no "soil", only regolith.

Matthew Ota

I'm not sure that's a very helpful answer.

ISTM that it rather depends on what water-soluble salts, if any,
are present in that material. I honestly have no idea, and I'd like
to hear from someone informed on this.

Intuitively, I kind of suspect that there might not be much of interest
that's water-soluble in it. Where would it come from; what would create
it?

I rather doubt that lunar "soil"/"regiolith" (whatever the etymology of
that latter word be) would happen to be rich in all the nutrients that
plants need, and free of toxins.

We await informed comment.


Martin
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M.A.Poyser Tel.: 07967 110890
Manchester, U.K. http://www.fleetie.demon.co.uk