German chemist Fritz Haber had figured out how to fix nitrogen from the air and turn it into ammonia, which could in turn be used to develop synthetic fertilizers.

德国化学家弗里茨·哈伯找到了从空气中固定氮气再转化为氨的方法，这可以被用来开发合成肥料。

Since Fritz Haber and Carl Bosch came up with a way a century ago to wrest nitrogen from the air and turn it into fertilizer for plants, food supplies have exploded.

自从一世纪前 Fritz Haber 和 Carl Bosch 想出想出方法从空气中提取氮将其变为植物肥料后，粮食产量开始爆炸性增长。