How do I give liquid fertilizer to my soil based auto flowers?

I have these in pic related but I'm not sure how to use them and I don't want to damage my plants. I feel like I'm supposed to put like 1 tps of these per gallon of water, wait a day or two while mixing it, and then apply it to the soil. Now what I am confused about is that do I just dump the whole fertilized water of this stuff onto the plants? Or do I just pour a little bit into the soil? Please help.

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