lol, I really don't know. I just use glysophate 2 times, once to kill it all and once to kill whatever is left/new weed growth a couple weeks later. I also try my best not to disturb the seedbed after the final spray. For tiny seeds like turnips or clover, that don't have to be "buried", just packed, it works. Plus, with turnips or other brassicas, they kind of take over and shade out weeds or prohibit them from growing since they can grow fast and dense.
Good luck this fall