What is the optimal PH Range for nutrients when growing in soil?

Well i was doing my reading in the faq's but i'm confused about the info...it said 5.2-5.9 but i believe it was talking bout hydro grows...i'm growing in soil using biobizz, liquid karma and cal-mag....what ph range should the nute mix have for maximum uptake in soil-potted plants? Thanks in advance and hope it don't sound dumb:)

Shoot for 6-6.5, a little in either direction wont hurt anything.

I agree. :)