How do you prepare a "virgin" mare for breeding?

I have a 4 year old mare that i wish to breed. We tried last breeding season, but she did not concieve and it was too late in the season to continue trying, so i decided to wait untill this spring. The thing i would like to know is If there is anything in particular i should do to prepare her, since she has never been in foal before? The stallion is fertile and he is at the barn i board at. Would it be easier to do in-hand breeding or pasture breeding and how often? Thanks so much...