"Stan Goodman" wrote in message news:uViCr8LlbtmJ-pn2-LhbX1Of8umK8@poblano...
On Wed, 13 Oct 2004 00:15:32 UTC, belly opined:

I use water with a little ammonia in it for washing my windows... is
it OK to throw the leftover water on the compost pile?

Ammonia is a natural component of urine.

No it isn't at least not for terrestrial animals. Now if you are a
fish it is.
But to conserve water our kidneys combine the waste nitrogen with
carbon dioxide to form urea. Sitting in a bucket bacteria break down
the urea and nitrogen outgasses as amonnia.

That said, on a western diet you can expect to excrete about 10lbs of
nitrogen in urine a year.(roughly an Oz of urea a day)
Or about the same amount of nitrogen as in a 100 lb sack of 10-10-10