It's not the strain that determines how much a plant needs or wants - nor is it dependent on whether its sativa or indica... autoflowers (which you're not growing here) require far less nutes than photos... but what you should really do is simply "read your plant" - let IT tell you how much she wants/needs. If you follow the feed chart for your nutes and she doesn't complain, then you're golden... if she complains, back it off a bit. When heading into flower and all during the flowering stage, you're going to want less nitrogen and more potassium and phosphorus... Relying soley on your soil is not a good way to go, imho - I've got great soil, my neighbor has shitty soil... areas of my yard have heavy clay, other areas are quite sandy and others are rich and loamy ..... you can always have your soil tested to see its composition and attributes - but again, it's easier (and cheaper!) if you just read your plant.
Good luck!