Abstract: An abrading tine for use with a turf aeration apparatus has abrading structure that is defined on and protrudes from an outer surface of the metal tube forming the tine. The abrading structure forms at least ten discrete protrusions per tine and such that a distance between a peak of each protrusion and the outer surface ranges between 1-12 mm. The abrading structure is defined such that a significant increase in water infiltration and root mass of the grass turf is achieved as compared to a conventional tine. The abrading tine is adapted to allow the proximal end of the tube to be operably coupled to the turf aeration apparatus by any number of known attachment arrangement. The tube may be slightly tapered and the distal end beveled for easier insertion into grass turf. The abrading structure can comprise a plurality of grating elements or a knurled pattern defined in the outer surface.