I am not sure if this is an accurate VH Mix but it looks like it. Just reading GrowerGoneWild other post I would follow GGW suggestions on growing.
1 bale of promix
15-30 lbs. of wormcastings
4 cups of dried blood
8 cups of bone meal
4 cups of kelp
4 cups of dolomite lime
1 1/3 cups of epsom salt