Long term effects of artificial nitrogen on the soil and the environment.
http://www.grist.org/article/2010-02-23 ... ndermines-
The latest on artificial nitrogen, research
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A more direct reason for artificial nitrogen fertiliser being unsustainable in the long term is that the normal production method is based on copious amounts of natural gas.
Http://www.madehow.com/Volume-3/Fertilizer.html
Http://www.madehow.com/Volume-3/Fertilizer.html
Last edited by peter on Fri Dec 23, 2011 9:35 am, edited 1 time in total.
Reason: picky website wanted words capitalised.
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