A debris assembly for use with a mobile agricultural device is provided. The debris assembly may include a debris member, a liquid injector member, and an attachment bracket. The debris member may substantially prevent debris from accumulating on the disc of the mobile agricultural device. The debris member may be adjustable as a single component relative to the disc to accommodate various soil conditions. The debris member may be removable from the attachment bracket. The injector member is mounted to be separately adjustable from the debris member.