Human Urine as a Fertilizer!

I've been wondering why my grandmother used human urine to fertilized her backyard plants while I was growing up. Then I found out eventually that human urine actually contains urea which is a good source of nitrogen for plants.

Instead of watering the plants with water alone; my grandma used human urine mixed with water and carefully distribute them using a water sprinkler. Thinking about it right now is actually gross but I can definitely tell you guys that the plants are very healthy and green.

Good night everyone!