If you have a large lawn or you have a large area of grass you need maintained. We have a state of the art grass cutting mulching machine. It cuts the grass into such small pieces that the debris naturally falls back onto the ground. The nutrients are not taken away but they go back into the ground.
Basically acting as a feed. This system is both beneficial to the grass and the environment as we are not taking grass cuttings away or leaving to rot down in an area in your garden.