Someone correct me if I'm wrong, but RockChucker30, you need to get your pH up to at least 6.8 (7.0 is better) before even trying to plant alfalfa.
With all the hype over the years about planting white clover for deer, we tried many kinds of white clover plots without much luck. The deer would use our fall and winter plots a ton, but hardly touch the different white clover varieties. Our neighbors have lots of alfalfa and they would always be feeding on that. As soon as we started planting alfalfa, the deer were hammering it! White clover could not compare to the attraction of alfalfa, even the special "deer white clover" varieties. We have had great luck with the whitetail institute's alfa-rack. We wanted just pure alfalfa, so I contacted them and was able to get just the pure alfalfa seed without any clover or chicory like they sell it normally. I think there are 3 alfalfa varieties they use in their alfa-rack plus product. If anyone else has tried alfa-rack from the whitetail institute and has been able to compare it's attraction to other varieties of alfalfa, I would be very interested to know if there are any others that are just as or more attractive. I'm afraid to try any other alfalfa varieties because this has worked so well, but please leave a post in this thread if anyone knows of any alfalfa variety that deer seem to prefer more than others.
In our area, there are well over 100 deer per square mile, probably closer to 150 per square mile, and deer can't come close to keeping our alfalfa "mowed". On our 190 acres we have about 10 acres of food plots, and right now because of crop rotations (everything else will be corn, rape and oats this year) we only have one small 1/2 acre plot of alfalfa and I've already mowed it 2 times. I mow it when it gets to about 12 inches tall, down to about 4" with a finish mower that does not leave a "windrow" of cuttings. From September through March we can drive the roads between ours and two other neighbor's properties, which totals around 700 acres (that includes our 190), and count 150 deer at times. A square mile is 640 acres, so like I said, it's probably closer to 150 deer per square mile. And yes, our buck to doe ratio is tight because we don't shoot young bucks. We are going to start increasing our doe harvest this year. I think it would be impossible for deer to destroy alfalfa unless you had only one small 1/2 acre plot and well over 100 deer per square mile with absolutely no other crops in the area for deer to "spread out" their feeding on. I don't think there are many, if any, areas of Iowa without agriculture, so that problem sounds very weird to me too.