i dont understand why this would be. bacteria convert the nitrogen gas in the atmosphere (which plants cant use) to ammonia (which plants can use). i thought urea was similar enough to ammonia that plants would be able to use it. and people do use animal manure to add nitrogen to the soil…
well, urea and ammonia are toxic cellular waste products (ammonia more so than urea) so i could see why a lot of that concentrated in one spot wouldnt be so good for plant cells.
Uh, ok. What I would do, not that I’m saying I ever have, is take my 2 gallon watering can which has a large opening at the top, out behind the house & pee in that. Fill the rest up with water from your um… (oh, give it a rest!) hose. Water plants.
A couple months later when your friends are enjoying your home-made salad made from those delicious tomatoes you grew yourself, try not to grin too much. “Oh well, I like to think there’s a little of me in everything I grow.”
For a real-world example of “burning” your plants, if you have a female dog, look where she pees in your yard. (Easier to tell with the lady dogs because there’s a nice circle in the grass.) There’s a dead spot in the middle, and a ring of really green grass around that, and then your regular lawn. The stuff in the middle got too much, the stuff around the edges got a nice dose.