Hey, I had similar questions about wanting to make sure I could make large deposits if I wanted and after a bit of googling I found this page: https://www.barclaycardus.com/app/japply/banking/marketing/rangedcma/Farm_Bureau _Bank/Standard_Credit_Agreement.html
under "Your Minimum Payment Each Month" it says
"At any time you may pay more than the Minimum Payment Due up to the full amount you owe us. However, you cannot “pay ahead”. This means that if you pay more than the required Minimum Payment Due in any billing cycle or if you make more than one payment in a billing cycle, you will still need to pay the next month’s required Minimum Payment Due by your next Payment Due Date."
However we should note that it says at the top that these are the terms for any card dated before 3/31/15, but as it's from this year I can't imagine the conditions have changed drastically in this regard.