Help with fertilizers

[Darknessdancer]

I posted this on the S/H forum but since i almost got no answers i´ll post it here, please I need any help you can give me on this, about doses to use and such.

I´ve recently acquired some rooting liquid, composition as follows
250 ml total
N-P-K......................... 20%
Fe, Zn, Cu, Mn, Ca, S.... 3.50%
B1, B5, Niacin............... 3.50%
citocinins, giberelins, auxins .. 2430 ppm

Thing is, i wanna use it to water some of the ´chids, but according to Ray´s website calculator, taking in account the N-P-K thingie i should use aprox 1/2 tsp / gallon, but i´d like your opinion on this.

Besides, i acquired something that claims to be a liquid vegetal stimulant, seemed a good thing so i´d like to give it a try, it´s composition as follows
250ml total
Mn... 0.57%
B.... 0.192
Ca... 0.19
Mb ...0.007
Fe...0.71
Zn...0.25
Cu... 0.19
Mg...0.067
Giberelic acid .. 0.1
Indolbutiric acid .. 0.001
S.... 2.00
Aminoacids.. undetermined
the problem is that i don´t know what quantity to use on a gallon, and the guy at the store wasn´t of big help, so i´d really thank any light you could give on this!

Thanks in advance
Respect.