RE: small plots in new jersey
Small plots work everywhere - Rye or winter wheat is a good choice in the area you describe - especially since you are looking at a fall plot.
Its important not to expect much from a small plot. Deer eat 1000s of lbs of forage a year - a small plot should be looked at as a "desert" for deer - or a "timely snack". To be effective, you want it planted very near a corridor for ample deer movement - the plot should give them cause to stop, an help you harvest a deer.
Don't expect larger antlers, huge deer, etc.