The groundsman at my cricket club has been on a course and they have told him to send a couple of samples of the cricket square for testing for 'potash'. We send them to the local lab and they told us we should test for 'available potassium'. The results came back as 250 and 230 mg per kg for both samples. Is this a good level for a cricket square, are we better off adding more or less fertiliser, any responses will be appreciated. Thanks