your soil makes those charts pretty much only a suggestion
I used Fox Farms starting out (still fairly new, so let me post that disclaimer) and it was very soil dependent. If you use their soil you will use less than recommended, much less. The hardest lesson I'm learning is how to read my plants and act accordingly but once I grew outside using a different method (using cheap time release and water only) I noticed how little "extra" our plants actually need. My outdoor grow is very low maintainence while my indoor grow I was constantly fighting nute burn and lockout issue.
But just for reference i would start about 1/4 strength of recommendations (remember they are in the business of selling you MOAR!) and see how your plants react. It's much easier to correct under fert than it is over.