In soil it's pretty much all the same,as long as your plants get a cannabis oriented ratio of nutes that doesn't precipitate or get locked out you'll be good to go.
If your just learning nutrients in general, you can do a quick read here to get the general idea of things.
https://www.growweedeasy.com/nutrient-basics
Also fox farms should have a feeding schedule on the website along with what soil/nute does what.
Dry nutes are cheaper in the long run, have a longer shelf life and allow you to dial down your soil mix with water only.
Liquid is better for those who are just learning imo, easier to correct any fuck-ups and you learn more about the defs.