In article ,
Timothy Murphy wrote:

Which constituent of urine is supposed to accelerate composting?

The urea. It's a highly nitrogenous chemical (actually the first
organic compound to be synthesised - I thought you would want to
know), and is sold commercially as a nitrogenous fertiliser. Many
bacteria can use it to build proteins - consider it a bit like a
beefsteak for bacteria :-)


Regards,
Nick Maclaren.