Professional producers require equipment that can manage increased straw and chaff loads post-harvest, increase water penetration, quicken soil warming and promote weed seed germination for a proper pre-seed burn-off operation. DHX-600 high speed tillage unit does all that with its double row of wavy coulters and five bar heavy harrow. The coulters engage the ground sizing the straw and mixing the chaff within the top layer of soil. The heavy harrow evenly distributes, levels and breaks up residue that is discharged by the coulters. The DHX-600 Disc Harrow is the is the evolution of the heavy harrow, the next level of performance for post harvest and pre-seeding. We have recently added the option of a Valmar Fertilizer Kit for the DHX-600.