Lot of reasons why a plant could have yellow leaves. Too much water, too much nitrogen etc. I'm no expert but you want to go easy with piss. I can't emphasize that enough. Think of piss like grass fertilizer that say 50(+) for the 1st number. It just don't put that stuff on the grass unless you have lots of rain. Same thing with urine. You really want to compost it 1st. You want that compost to be turned daily. You don't want to promote anaerobic bacteria.
I'd really ask some others around here to critique your plants. They might have too much nitrogen. Again I'm not expert but if their yellowing is due to too much nitrogen urine might really do them in. Often times the case in life less is more.
I'd really ask some others around here to critique your plants. They might have too much nitrogen. Again I'm not expert but if their yellowing is due to too much nitrogen urine might really do them in. Often times the case in life less is more.