I usually get questions about applying manure to gardens in the spring, when everyone is excited about possibilities of fresh veggies. But in reality, it is probably better to talk about this subject in the fall.
No doubt there is benefit of using manure as a fertilizer in gardens. Manure adds nutrients, it improves the ability of the soil to hold water, and it improves the overall texture of the soil. That is why farmers apply it to their fields.