A good seed spreader can apply just the right amount of product uniformly and in accurate amounts to the left, center, and right while applying the recommended volume for your property size. Broadcast, or rotary, spreaders operate by throwing the seed in a wide swath in all directions.
Because the rotary action of the spreader creates a pattern that fans out so the margins of each pass overlap each other, it provides more uniform coverage. Though it offers more even coverage, it can make it difficult to adequately reach the edges of your property. If you have a large area to cover, broadcast seed spreaders are ideal.