Choice of soil is crucial.

It doesnt have to be any specific brand, but for sure have specific properties.
Organic soil mixes are prefered. Check the Organics forum for info on that.

Determine if you're wanting day-glo chemically fertilizers rinsing away your good soil. (They work for some, not many though. If you're using that sort of thing, always go 1/4 strength. If not, you'll find out right away what nute burn looks like.), otherwise...be on the look out for organic nutrients and who makes them.

Reading various grow logs will show you whom uses what for soil grows. Go with safe bet stuff tell you get more learned about growing.