Rotational grazing is another way to help let the grass recover. By moving the cattle from pasture to pasture over a certain period of time will help the grass grow. It can be time consuming and labor intensive but in the end it will pay for itself.
No wonder it's called the Emerald Isle. This aerial view of Irish fields looks like a green patchwork quilt. (I remember thinking that time flying into Ireland, lovely patchwork quilt - does it still look like this?