maybe putting a tent in the middle of the field and hunt outta it...i have seen a guy use a blue...yes blue...tent and the deer walked right by him, barely looking at it...so a good camo blind should be fine.
also, i think the deer take a slightly different trek when eating in a field, almost like they are grid searching from day to day. so if they miss ya 1 day, maybe in the next day or 3, they might walk right by ya. gl