Lots of YT videos extolling the use of urine in the garden. Does it work? Can you offer a water to urine ratio? And can it also be used as potassium or/and phosphorus?
Wayne County Michigan soil and fertility issues
I have no answer for your question. You might email Dr John Biernbaum ( email@example.com ) in the MSU Horticulture Department and see if he has an answer for you.