That's a pretty good post by kurt. I usually use a homemade drag after spreading the seed and then pack it again with a roller, but by using the atv tires like kurt dose you are also lightly covering the seed like you would with a drag. When he packs the soil the first time the knobbies leave thousands of indentations in the soil that the seed lands in. When he packs it again those indentations don't line back up with the knobbies on the tires so the knobbies crush the high points between indentations which covers the seed that is in the indentations.
A lot of people just give one through spraying and then wait about a month for the weeds to die and the roots to break down fairly well. As long as they got a good kill they then till or disk and the ground turns up nicely. A lot of people have good luck this way, but I like multiple spraying's like kurt dose. If your not doing tillage multiple spraying's the year prior to seeding is the way to go.
Splitting his fertilizer into more than one application is good too. One application a year will get you by, but doing at least two applications is much better. A shot of urea (ideally right before a good rain) about two weeks before you want maximum plot activity is good too. The growth spurt from the urea makes the plot more attractive similar to what mowing dose.
Here is my favorite broadcast seeder for small seeds like clover and most brassica's. If the smallest opening isn't big enough to let seed through I set it to #2 then keep pulling the trigger and releasing it as I go. If your not used to seeding these seeds then try to cover the whole area with a half rate. Most people will run out much sooner than expected and still having half the seed left works out great. If you do pull off getting the whole thing covered with the half rate then just go over the whole plot a second time with the other half and your golden.