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, pointed teeth or discs that penetrate the ground, helping to prepare the soil for planting. Harrows can be pulled by tractors or horses, making them versatile for different farming practices. There are various types of harrows, including disc harrows and spring-tooth harrows, each designed for specific soil conditions and farming needs. By leveling the soil and removing weeds, harrows play a crucial role in enhancing crop growth and improving overall soil health.