Hey did a demo thread on this on OG (under this name) with just plain lawn grass. I only used lawn as an example coz where Ilive is impossible to grow outside.

I used to piss on my plants when I grew outdoors, the secret is to make sure you havent been on the piss or taking other drugs, and dilute it a bit, dont do it too often or your plants will suffer nute burn. I over-pissed on one plant and the leaves went the darkest green I ever saw, then burned at the edges, I just flushed thme real good, the bud was excellent