Bat Guano? Pot Growers swear by it; it's mostly nitrogen for lots of leaves and ample buds, Man! 'Chickety-Doo-Doo' is a good alternative, if you can find it in your area.
I think my plant growing knowledge may be wasted. Heh-Heh. Heh-Heh. She said, 'wasted!'
We have a lot of random 'hemp' growing out here on the farm. Wisconsin used to be a HUGE hemp producer. It's not the good stuff, just the generic rope staple grown in the 1940's. The Mule likes it, though. ;)