Can you use Grow Big Hydroponic nute on soil?

I ordered FF Grow Big and recieved the hydroponic version of it. I know the NPK ratio is different, but may I still use this nutrient in potting soil? If so how much could be used?

Obv the ratio for the regular Grow Big is 6-4-4. However, the Hydro version is 3-2-6. I want to add some nitrogen to the soil and this is the strongest nitrogen containing nute that I have available. My plants are yellowing from the bottom up and it looks like textbook nitrogen deficiency to me in 2nd week of flower (autoflower easyriders and kush ryders) and I wanna be sure to give it the nitrogen it needs. Anybody wanna give me an answer or am I just sounding dumb?