Well if you only have one trail cam i would pick the best spot on the farm to put it and like i said IDK when your season starts but i would try to walk all of the property and get to know it. As for scouting if all the feilds are corn there is a chance that you will not see many deer if you are in your truck with binos. If you have a climber i would try to set it up on a feild edge to see if you can catch some deer entering the corn. But really you are SOL if there is corn. Your best bet is to walk the property and look for deer sign and set that trail cam up. Might even want to put some attractiant or bait if its legal in you state.
Also i really dont know how the land looks but if you are able to scout from the back of you truck to give you a better vantage point i would do that..