It is well known that "Waste" animal or human is beneficial to plants. Cow, chicken and fish manure are probably the most common. Even "Black Gold" also known as compost is in some cases largely worm manure. Though urine would normally have too much ammonia in it that would be toxic to some plants, especially in large amounts. But I would assume that the 6 month waiting period would give the ammonia enough time to break down so that it is not toxic to the plants anymore.
I don't see a problem using this for soil grown plants, but I do see a big problem with Hydroponic plants. Nitrogen, potassium and phosphate would not be desirable to add to a hydroponic solution. When using Hydroponic
nutrients these elements are already present in the popper proportions, adding them to a well balanced solution only will through off the balance of those elements.
Elements needed for Hydroponic plants