"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?

rob