A disc harrow is a farming implement used to prepare soil for planting. It consists of a series of sharp, round discs that cut into the ground, breaking up clumps of soil and mixing in crop residues. This helps create a smooth seedbed, promoting better seed-to-soil contact. Disc harrows can be towed behind a tractor and come in various sizes and configurations. They are effective for both primary and secondary tillage, making them versatile tools in modern agriculture. Proper use of a disc harrow can improve soil aeration and drainage, leading to healthier crops.