I been reading on the net about studies that have been done using urine as fertilizer. Sounds like it's safe to use when diluted. In different experiments that were done, human urine really seemed to increase production in certain vegetable crops big time! The articles also state that urine is loaded with nitrogen. Perhaps it's not just human urine but any urine. My neighbor told me that many years ago he knew an old farmer that used to take a bucket out in the morning and catch urine right from his cows while they were urinating. He would then pour the urine between the rows of his plants. My neighbor said this farmer done this his whole life and always grew wonderful veggies. I would imagine that he would of diluted this urine also as not to burn the plants. I know what happens when my dog pisses on the lawn.....LOL
Rich