铁制农具
铁制农具-
春秋战国以后随着铁制农具的出现，农业生产对季节性的要求更高了，就逐渐形成了节气的概念。
During the Spring and Autumn Period , the agricultural production was highly subject to the seasonal changes with the invention of iron tools , thus forming the concept of Solar Term .
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战国时，铁制农具已代替木、石农具普遍用于生产之中，不仅有利于砍伐树林、兴修水利、开垦荒地和深耕细作，而且促进了农业生产的大发展。
During the Warring States Period , iron farm tools were in common use , replacing wooden and stone implements , which not only helped to fell trees , construct water conservancy , reclaim wastelands and practice deep ploughing and intensive cultivation , but to promote the agriculture greatly as well .