Bat Guano is different than bat shit.

The beauty of guano, is that it WAS once bat shit....but then bugs eat the shit and shit that shit out.

So really its shit several times over...if you can follow that

Pure bat shit I have no idea about.

You should really buy some some manufactured and processed bat guano...

Although in Jamaica, they just scoop it up and throw into the soil.

Yes, it is that good.....but you need to experiment.

Some bat shit is higher than other bat shit in nitrogen while other bat shit is higher in P-K than N.

It all depends on how many different stages of eating and shitting it has gone thru.

Your approach is truly that of an investigator

I would try it by mixing some in the top one or two inches of soil and then water.