Hey Hall...

Presumably, a person would pee into a container, dilute it with water...then apply it to the soil. Considering how often people pee...keeping a batch of the stuff around would be totally unnecessary, and kinda...ew.

Anyway...I don't know my body's pH, but I do know it's regulated...a person's individual pH is a thing that is locked in for life. You can drink all the coffee, tea and orange juice you could stand, the pH of your pee won't change. Anything ingested is automatically buffered before being released into the bloodstream. And, were it either on the acidic or alkaline side...it'd be the simple matter of adjusting it as any other solution would be.

Far as what all occurs once it hits the soil...well...everything stops being sterile soon as it comes into contact with air, let alone a pot full of dirt.

Anyway x2...I'm not advocating the use of urine here...just noting that it'd not be a bad thing to use...and...it's free.