A harrow is an agricultural tool used to break up and smooth out the soil after it has been plowed. It consists of a frame with sharp, metal teeth or tines that penetrate the ground, helping to prepare the soil for planting. Harrows can be pulled by tractors or horses and come in various designs, including disc harrows and tine harrows. Using a harrow improves soil aeration and helps control weeds by disrupting their growth. This tool is essential in farming, as it creates a better seedbed for crops like wheat, corn, and soybeans. Proper soil preparation leads to healthier plants and improved yields.