Doubt it's the nutes... been on the H&G for over a year & comparable to previous regiments under differing brands (same genetics/room).
Seeing that genetics isn't the issue, likely suspect is in your dry/cure procedure. I would look that stuff up rather than give consideration to additives or nute issues. The only other exception to that issue is not flushing and/or overnuting. Assuming those are in line, it falls back to your dry/cure.
Basically, don't dry it too fast- shoot for 1wk minimum to 10-14 days slow dry before you begin the jarring process.
Before you jar, they shouldn't be green/wet at all. At jarring, slight give/bend (not bone dry/crispy) yet all stems will snap when pressed between the fingernails. There is a small window here depending upon your temps/rh. Anyway, if you jar before this you will kill odor & taste development along with locking in the "green".
Once in the jar, burp them to ensure moisture isn't present & let them age. You should get the dank to settle in develop. Taste will be smooth, assuming a good flush beforehand.
Wet bud in jars/bags = shit grade weed. Not saying this is you, just my soap box.
Peace brother.