what would you do?

hey guys have a dilemma. I try to be fully organic - so far this season I have been. However, my plants are N hungry and I cant afford to feed them right now. a buddy gave me a bottle of FF grow big - so I could feed them, but besides compromising my ethics, would it be damaging to the beneficial microbial life in my soil? I had the thought that if I used it as a foliar feed it could deliver the food without disrupting my soil - it still seems like cheating I know. I figure unless the smoke forces early flowering I have several weeks left and I hate watching them starve... what would you do in my shoes?

Any farms near where you live? Barnyard nitrogen sources.

Just use it. Nothing bad will happen and youd never notice the difference in the final product.