Pa food plots
Hunting man, I too live in Pa. and have had great success with Whitetail Institutes (Pure Attraction). The turnips get as big as softballs if they get enough rain. Also includes Wheat for fast cover crop. Like all Brassicas they need a couple frosts to bring sugers into leaves. Make sure to do soil test, you will probably need lots of lime.
Ps, you may want to mix some Red & White clover in.