QUOTE (Laramie @ Aug 23 2009, 08:54 AM)

AFAIK you have to leave dung to breakdown and get rid of the ammonia etc.
e2a. what Arnold said.
e2a. outdoors after you crop you can spread a 6-8" layer of horse manure over your patch and let the worms work on it over winter.
Sorry mate, should have said the above also. whoops!
As said don't use horse muck fresh, it will burn your plants. As said leave it to breakdown, compost bin is ideal, let the insects get at it etc.... however as also mentioned after this, you'll need to treat the soil to remove nasty things that have got into it over the breakdown period.
You'll know when its ready to use because it will go this milk chocolate brown colour and will also and this is critical!!! it wont smell at all! thats when you know its ready, basically it wont be horse muck anymore, it'll literally be very good quality soil by then.
I'd mix with some general seedling compost, perlite and some sand.