29．刀【刂】部 knife
刀knife耕plough火fire种plant
In ancient times, peasants in China farmed using the slash-and burn method—刀耕火种. This method involves burning wild grass to make fertilizer, then using a knife to cut holes in the ground to put seeds in.
刀耕火种sometimes is used to describe something that is in a primitive or underdeveloped stage.
【拼音】dāo gēng huǒ zhòng
【解释】古时一种耕种方法，把地上的草烧成灰做肥料，就地挖坑下种。
【出处】《旧唐书·严震传》：“梁汉之间，刀耕火耨。”
