Equine and human urine contains the spore that causes tetanus. Mixing urine and vegetable gardening is theoretically possible IF everything goes right. Like, for instance, no rusty nails...Tetanus. One has to pre-suppose that one's urine is sterile and not infected. Not liking this at all. To do that a urine sample would have to be taken from each..."batch"...and tested. Enjoy your typhus. And cytomegalovirus. Hope this produce won't be shared or sold as "organic."