WOW, makes me feel good that my advise has been mentioned a few times.[:)]
bowhunting31, all of what hookset and msbadger has said is very sound advise if you are able and willing to put in the hard work. Any equipment you have at your disposal can help out tremendously. The soil test are cheap and easy. Lime is cheap for the most part and probably the most important part of the whole growing process. The Ph of the soil is what makes the plants you grow palatable to deer. If the deer don't like the way it taste or can't digest it right, you might as well have planted briars. Second is fertilizer. If the soil is dormant and has no nutrients, back to the briars thing. But, fertilizers are a little more forgiving as most times you can get by with a generic blend such as 15-15-15 or 10-10-10 as long as you use enough and don't use too much. Third is the competition from weeds and grasses. A bottle of round-up can help this problem as long as you take the time to do it right. As msbadger stated, once you kill off what is already there, there are years worth of seeds just waiting to get the sunlight they need to germinate. Normally I like to spray the area down to kill what has grown already. Then disturb the soil and wait for it to green up again and spray it down another time. If you have the means of breaking ground, you follow the advise of hookset and msbadger, you should turn up some very fine plots regardless of what you plant.
As far as what to plant, well that depends on if you just want a harvest plot, a low maintenance plot or a plot to supply the deer with the highest nutrients possible. For harvest plots, buckwheat, winter wheat, rye grass, oats, cow peas, and Australian Winter peas are great choices. As well as some of the brassicas, although I do think that depends on what area of the country you hunt in. I have had marginal results from the brassicas in KY. They grow well, the deer just don't use them as much as I have heard others state from further North. A low maintenance plot, go with a clover blend, red, white, aldino, arrow leaf, etc., with some alfalfa or chicory in the mix. Once these get started, they are a breeze to keep going year after year. Mow them about 4 times a year and add 0-20-20 fertilizer at about 200 lbs. per acre once a year and your in business. As far as high nutrient food plots, well that is usually more work than the average hunter wants to think about. These are plots that you constantly rotate from Summer to Fall/Winter plantings. It takes $$$ and good equipment. I have tried the 2 seed choices you have listed with very poor results. If you don't have means or time to break ground, take the advise I gave ghosthunter. As a "throw and grow" food plot, you can't beat it. Although, like I mentioned in that post, don't expect a food plot like you see in books to come out of this method. I have had very good results doing this when I was young and had no access to equipment of any kind. Also, if you have any honeysuckle thickets close by, fertilize them too. You will be amazed at the way deer will eat them down once they are fertile. The honeysuckle also will greatly improve its protein content once you do this to between 19 - 23%, which is great compared to the cost and time it took to do it.
There are alot of great hunters/land stewards on this forum that can and will give you great advise, but I think you will find it is pretty unanimous across the board that you will get out of your plantings what you put in them. Meaning, don't expect great things out of a "throw and grow" food plot. The more effort, the better the outcome.[;)]
Hope this helps and keep us posted as to the outcome!
Hunt as though your life depended on it, because one day it just might!