Another thing you can do is go right out in the corn after em.Theres open spots in almost any field, waterways, flooded out spots, fencelines between fields, creeks, etc...Deer like these areas inside the cornfields, they like to bed in em out in the sun, they use them for travel, and it seems like if the corns been really wet from rain or something they like to come out into them to dry out.
Most times Ill set up on the downwind side of an open area inside the field with a good view of the whole opening, get back a few rows and just use the cornstalks to hide in.