"Weed Control" .... it's called that for a reason! We able to control but not much more. There are billions of weed seeds in your soil, they generally germinate in the top 1/4" to 1/2' inch of soil. Whenever you till or cultivate, you bring more seeds up into that range.
Skimming over this thread it looks like these folks have hit on just about every technique that I'm aware of. Nothing is 100%....you're always gonna have to pull some by hand. Don't know where you are located but if you're in an arid region, don't water what you don't want to grow, use soaker hoses or drip. Prespout sprout in the spring before planting, water, weed, water, weed again.
Solarization was mentioned & it works very well but you have to be able to take the plot out of production for 60 to 90 days. I often use it before planting a perennial crop then mulch with straw or leaves. Mulching also makes the weeds easier to pull.
I also mulch with cardboard that I've saved over the course of the year as I don't have the patience to mess around will newspaper, then cut holes & plant seedlings. These two won't work if you're dealing with Burmuda grass in my experience, as it just goes nuts under there, better to be able to see & deal with it.
If you can't beat it, eat it! Some of these things are edible, if not for you then perhaps livestock.