Soil pH management outdoor

Soil is a bit more forgiving to pH imbalances than coco or hydro. In veg it's probably better to be a touch too acidic than too basic. Careful with ammendments if you go that route, they generally take a little while to take effect and you don't wanna overcorrect. I'd just continue watering on the higher end of the acceptable range, like 6.5-7.0, and continue to monitor things.

If I'm seeing things correctly in your photo is that its an outdoor grow, something easy to try is (hard wood mulch) this can become alkaline, which in return can help raise soil ph. Do not use cedar or wood chip mulch, because these will make it more acidic.

You are showing lockout. I can't really say what is missing without more info. Definately need to be amended.