I was looking at my fertilizer the other day and noticed that the primary substance in it was urea, the same compound found in urine. Did a little digging and apparently urine has been shown to be an excellent source of fertilizer, as long as it's diluted and applied directly to the soil. So if we produce it for free, it's sterile, and organic, why not use it? Anyone ever try it or is that too granola for you guys? lol only issue I can really think of is a build up of salts after awhile, but with well draining soil and regular water, maybe this isn't a problem. Tempted to try it on my corn this year.