fruit bats have P poo, insect bats have N poo, i like bat poo. the stuff is strong , you could mix up both, the plant will take what it needs when it wants, but only if it can. Bat poos do burn plants so cation my friend. i lasyt used King Guano, phillipino fruit bat ****. i followed the insrtuctions and all seemed well. until a deer or rabbit ate my plants. I cursed the gods..