耒是最早的曲柄、尖头翻土农具.发展为耜.耜是直柄、扁平宽刃、用于耦耕的翻土农其.犁也从耒发展而成,最早是石犁,直到汉代铁犁与牛耕才推广.周秦是耦耕时代,故“耜”是耒、耜总称,“耒”则很少单用,“耒耜”连用,“耒”指柄,都指入土之头.秦后,“耜”成耕具泛称,“耒”成耕犁通称,新出现的“犁”则是口语中耕犁的通称. 耒 is the earliest crank, pointed soil tools. Development is 耜. 耜 is a straight handle, flat wide blade, for the tilling of the soil for farming. Plow also developed from the 耒, the earliest stone plow, until the Han Dynasty Iron plow and cattle cultivation was promoted .Zhou Qin is the era of coupling farming, so “耜” is 耒, 耜 collectively, “耒” is rarely used, “耒 耜” with “耒” refers to the handle, refers to the head of the earth. After the “耜” into a farming tool, said “耒” into the plow known, the new “plow” is colloquially known as plow.