Some magazines want you to include the bio they will be publishing with your poem, if they accept it, so it's good to look at what other poets have written up. There are magazines online if you don't have a copy of that particular one to check out.
If that's not what they are asking for, I'd keep it business like--any poem or poetry-related publication of a professional level, placing in contests, or maybe writing programs you attended,
if you had to submit an application to be chosen.
Less is more in this case, because if you fill it with things not related, it will seem like you're compensating for something.
