Any of the planted tank ppl use their dry ferts in a vegetable garden? Can't seem to come up with much on Google
I don't use them intentionally (i.e. mix them just for this purpose), but do use fertilized tank water on the garden. Works great!
To put it short yes it does, in fact you have more flexibility with dry fertilisers in a garden compare to aquatic tanks(we cannot use anything with ammonia in it). But you will have to do additional research, given that soil itself already provides many nutrients and that by fertilising you may change the soil PH.