I would say that a drill is the most effective, but if you do not have a drill, broadcast after tilling and then drag or lightly disc it in then visually inspect the field. The RED ZONE seeds are quite large and if they are NOT covered, you run the risk of losing a lot of the seeds to turkeys, crows etc. Make sure these seeds are less than 1 inch deep. If you can manually set the depth of your drag or disc, I like to run the tines of the drag or blades of the disc about 1/2 inch to an inch deep in the plot and this will generally cover the seeds but not bury them too deep. Finally, if a cultipacker is available, I will finish with a cultipacker.