Wei Collection, Middle Volume Radical: Plow (lěi) Chao Kangxi stroke count: 10 Page 962, Entry 25 Pronounced chao. According to the Broad Rhymes (Guangyun), it means to plow a field again. According to the Collected Rhymes (Jiyun), tilling a field a second time is called chao. It also refers to a farm implement. As stated in the Complete Treatise on Agriculture (Nongzheng Quanshu), the chao resembles a harrow, but its teeth are longer, and it is used to break up soil more finely.