Like the others said, a banned account means that you can't participate in the Adsense program. This is something that happens to many people because they violate a Google Adsense policy in one way or another. This is something you want to be careful of so you don't get banned from Adsense.
Disapproved just means that they didn't approve your account and it's usually because the site you submit is violating one of their policies in some way or it might just be a real low quality website and they didn't approve it because of that.