Tag Archives: Ammonia

Book review: “The Alchemy of Air” – Thomas Hager

Alchemy 2

The subtitle of this book summarizes the content quite nicely: “A Jewish Genius, a Doomed Tycoon, and the Scientific Discovery That Fed the World but Fueled the Rise of Hitler”.

Synthetic fertilizer is one of these inventions that profoundly changed the path of humanity, but is being rarely talked about. Before synthetic fertilizer, farmers fertilized the” old way”, using animal manure,crop rotation etc. The problem with this approach is that the land can only yield so much net of what these animals need to eat themselves. The main issue is that plants need Nitrogen in a form that naturally is not so easy to come by and is used up if agriculture is intensified. Although Nitrogen is the most abundant element on Earth (78% of the Atmosphere), plants need Nitrogen in a different form and only a few of them (peas, Soy) can produce it themselves.

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