Hamstring, I'd say you have a few options:
-topdress or foliar with guanos. Foliar feeding will make more efficient use of the guano because less is needed to produce the same results.
-soil soak/foliar with a liquid organic nute (I like age old). A quart bottle will make 32 gallons at full strength or at least twice that when used as a foliar. Is it not possible to stash a gallon out there somewhere?
-topdress or foliar with guanos. Foliar feeding will make more efficient use of the guano because less is needed to produce the same results.
-soil soak/foliar with a liquid organic nute (I like age old). A quart bottle will make 32 gallons at full strength or at least twice that when used as a foliar. Is it not possible to stash a gallon out there somewhere?