Like Sprayers the Spreaders are used to increase the yield of your crops by providing proper nutrients to the soil. Unlike sprayers though, which have physical distribution schemes, these babies fling their smelly goodness! Flinging is far better than spraying - just saying.
Note: The first model attaches to the back of your tractor while the second is towed.
Both have the same basic spread as far as flinging their fertilizer, and both use the same tanks on your farm to fill than the Sprayers use. The important difference though is that use of the spreader does not require any deployment time (as do the sprayer) so you do not have to wait while it unfolds and folds and etc. Which is probably why we like the Spreaders better than the Sprayers.