Yes ... if you are in soil, forget all the fancy stuff. Here's some great ferts for you:
For vegging use: Peter's "Jack's Classic" 20-20-20.
For flowering use: Peter's "Jack's Classic Blossom Booster 10-30-20.
Here's where to order: http://www.jacksclassic.com/
Use these at only 1/4 strength throughout your grow and you will have beautiful plants producing great buds.