[如何打草根]春季草坪维护2：自己动手打草根，可能是youtube上最详细的关于打草根知识的中文视频，Dethatcher，Vertikutierer

To make the lawn healthy and beautiful, dethatching is a step that cannot be ignored, but is often overlooked. Depending on the situation of your own lawns, do the Dethatch once (spring) or twice (spring and autumn) each year. In this video, Kabalas wants to show you: what is Dethatch? why do you need it? And how to Dethatch your lawn?