Soil is not sterile. The microbes at work synthesizing nutrients from those chemical fertilzers and raw minerals, making them bio-available and aiding uptake a

Soil is not sterile. The microbes at work synthesizing nutrients from those chemical fertilzers and raw minerals, making them bio-available and aiding uptake are vital. http://www.pnas.org/content/114/44/11574 http://www.pnas.org/content/114/44/11574