Thread: Volcanic Dust
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Old 15-04-2010, 06:31 PM posted to uk.rec.gardening
[email protected] nmm1@cam.ac.uk is offline
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Default Volcanic Dust
In article ,
Malcolm wrote:

In article ,
writes
In article ,
mark wrote:

Just been and had a sniff.
No smell of sulphur detected here in Norfolk or any volcanic dust.
Bright,
sunny, clouds with about a third blue sky.

You know that it's excellent fertiliser?

I didn't. Presumably if it is dark the ground will warm up and be of benefit
to plants.

It won't be that heavy, from the sound of it, except perhaps up
in Shetland.

The reason is that it contains lots of useful trace elements.

When Hekla erupted in 1963, it covered an extensive area of Iceland with
ash which was so high in fluorides that it poisoned large numbers of
sheep and cattle :-(

Even fertilisers are toxic in excess. Iron is a classic one for
plants - animals are even more sensitive.


Regards,
Nick Maclaren.
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