RE: no plow food plot
A one acre food plot is a pretty big hunk of land (about 208 ft by 208 feet). Especially to do by hand. Something you can do is use Round Up to kill the weeds. Get a back pack sprayer and go to it. You'll want to wait til first green up in spring for the first spray, and probably a couple more times into early summer. Go with a higher concentration of Round Up and spray lightly. This way you won't have to haul as much water to your spot. After everything is dead it would be nice to burn it off if you can. I would suggest a brassica mix of rape and purple top turnips planted in late July or early August.
What kind of soil and weather do you have?