Grooming Buddy and Fertilizing with Dog Hair

What happens here

The farmer brings his German Shepherd, Buddy, from his kennel to the grassy area. Using a self-cleaning slicker brush, he thoroughly brushes Buddy's coat, removing a significant amount of loose hair. He demonstrates how the brush hair can be easily ejected. He explains that he leaves the collected dog hair on bare spots in the yard, noting that it acts as a mulch to retain moisture and surprisingly encourages grass growth, effectively fertilizing the lawn. He jokingly refers to this as Buddy's secret to better grass.

Goal: Groom the dog and use shed hair as fertilizer.