Dont disk it! leave those stalks anchored! You will plug your drill if you do! Well you may find you have a couple as the day progresses, but nothing like if you disked it first! For me it helps to stare at the drill all day, I have no plugs that way. As soon as I turn around and pay attention to something else..... Make sure any dew or wettness of the stalks is gone for the day before you start it will help the drill go through it.