Yes sir you are correct on that one, but you realize that in the wild they get there nutrients from the soil and other things (natural compost, animal droppings, urin, dead things in the siol, ect, ect, ect.....) that are NOT currently giving your plant nutes at the moment.
Go ahead and try to grow some bud without nutes if you want to. I'm just tryin to help YOU not be disapointed... Thats all!
If you want bud, go buy Miracle Grow All Purpose Plant food and feed at 1/4 to 1/2 strength every OTHER watering... Example: water, 3-4 days later or when soil is somewhat dry water with nutes. then just water, then water with nutes ect... Use that in veg, and whenever your ready to flower do the same but use Miracle Grow Bloom Booster.
Probably the most in expensive nutes you can buy. And dog just trust me, it'll be worth it! Unless you a big fan of smoking straight leaves..... Cuz that's what's gonna be happening if you don't get any nutes.....