A harrow is a piece of agricultural equipment used for smoothing and leveling the surface of the soil. This tillage tool operates by dragging a series of teeth, tines, or spiked units across the prepared ground. The primary functions of harrowing include creating a fine and uniform seedbed, breaking up clods of earth left by heavier plowing equipment, and controlling surface residue. By aerating the topsoil and lightly disturbing the seedbed, harrows help to expose underlying nutrients and prepare the optimal environment for subsequent planting or germination. Various designs exist, utilizing different mechanisms and materials to achieve specific levels of soil compaction and levelness.