A Unit (UO) and a related method for Tilling a Field (T), according to which at least a First Group (G1, D3) and Media Support Bra (d) suitable for Rotary Cutting discs and open in this field (T) Field (S) at least a second group (G2) of Medium d And Blade (V, e) is suitable for providingIn Correspondence with these Grooves (S) formed by the First Group (G1, D3), CUTS (Z) below the surface of the Ground (T) and Means (m2) of mechanical coupling for Connecting Said second group (G2) dynamically Support media (V, e) of Blade the first Group (G1, D3) support media (d) Discs.
