"George.com" wrote in message
"Farm1" please@askifyouwannaknow wrote in message
"Phil L" wrote in message

..and didn't get a definitive answer, so I'm asking again.
I have noticed in farmers fields, huge piles of what appears
to be a
blueish/greyish stone, I work in the construction industry and
to me it
looks like MOT, or crush & run, but blue.
Upon closer inspection (IE picking it up) it has no odour,
feels like soft
stone and the 'stones' range from 3 inch down to grit.
The piles of this I have seen in various (crop growing) feilds
range from
50 to 100 tonnes, and the farmers spread it over the entire
field round
about this time of year....last time I asked, it was suggested
that the
farmers were having drives laid or tracks for farm machinery
to drive on,
since I've recently seen it being spread, I know this is not
the case, I
cannot believe that it's for any kind of drainage neither and
I imagine
it's fertilizer of some sort, has anyone else seen this? -
does anyone
know what it does or what it's called?

Aggie lime is white (or aleast the stuff we use is). I'm wondering
if
it could be human manure (dried, pulverized, processed) and
colured
blue so it can't be used inadvertently for cropping fields??????
I
know it is around and used now in agriculture but not sure of how
or
where and since I'm in a different country

what are the practises in Aus for doing this?

I know that it's used on pine plantations but other than that I don't
know anything about it.