Jason Bradford: “A Hybrid Path to the Future of Farming”
The Great Simplification with Nate Hagens
00:00
What Is the Law of Return?
We're using nitrogen naturally from plants that fixate it, but additionally from a Haberboj process adding ammonia fertilizer to our fields. And we're also mining phosphorus and potassium. They're important because they tend to be what's called the macro nutrients. Nitrogen actually volatilizes. So it will go back when you combust things. It goes back to the gaseous state. That's why our atmosphere is dominated by nitrogen. But those other two are part of ash. The law of return is basically saying that what you remove from a farm field needs to go back if you want to maintain the mineral wealth of that field.
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