Rusty Hinge wrote in message ...
[...]
But beware of sawdust if you are averse to fungi appearing......

And it needs to be completely rotted before it goes in: wood needs a
lot of nitrogen to rot, and will take it out of your soil, which
doesn't seem to have much in the first place. If the stables are
mucked out very often, there may not be enough dung and urine to do
the job without a bought-in nitrogen source.

Mike.