Our fence line on the back field is losing soil. That is where our horses walk ,get fed, and also get thier attention. Is there anything I can do to stop it that would be safe for our horses? I thought maybe some crushed gravel or something like that. the field is 6-8 inches lower due to the erosion of the soil. NO grass to hold it there as the horses have eaten ,tromped,and basically destrayed any vegetation there. So anyone have any ideas on how I can fix this ???