If you're dead set on hunting that field, then give it a rest. While you're waiting, try and get a hold of 6-12 snow goose decoys.
When you're ready to hunt the field, put your set up off to one side or sorta towards a corner. Try hiding along the fence line if there's tall grass there. Keep your calling to a minimum or zero and see if you can drop a few pass shooting.

If you get some snows, place them in small groups of 3-4 on the outside of your canadas. If you know someone with sandhill crane decoys..even better. 1 or 2 will add some realism to the field.

Maybe they're on to your calling, but it sounds like they've got your field marked as No Go for Geese.

Good Luck and have fun.