yep urine is a good source of N, not sure about dilution rates but hopefully everything will be ok!
and about free nutes... i noticed you have a dog, gotta love em! so i'm thinkin, puppy poop compost maybe? or even dig up some worms for a worm farm? all u need is a plastic box or a styrofoam container, add worms add soil and whammo instant worm farm, just feed them with vegi scraps (NO MEAT NO CITRUS) and other leaf litter etc.
and about free nutes... i noticed you have a dog, gotta love em! so i'm thinkin, puppy poop compost maybe? or even dig up some worms for a worm farm? all u need is a plastic box or a styrofoam container, add worms add soil and whammo instant worm farm, just feed them with vegi scraps (NO MEAT NO CITRUS) and other leaf litter etc.