Nitrogen feeds billions of people, but relies on cheap fossil, damages soils, pollutes water with runnoff and only about 20% actually gets picked up by plant root hairs

On Sat, Dec 7, 2013 at 12:33 PM, dave andrews wrote: Bbc r4 on the above pointed out how the  haber process generated nitrogen feeds billions of people, but relies on cheap fossil, damages soils, pollutes water with runnoff and only about 20% actually gets picked up by plant root hairs, the rest washing away/off_gassing.  […]

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