[Terrapreta] Nitrogen Fertilizer Depletes Soil Carbon

[David Yarrow]

Nitrogen Fertilizer Depletes Soil Carbon
ScienceDaily (Oct. 30, 2007)
The common practice of adding nitrogen fertilizer is believed to benefit the soil by building organic carbon, but four University of Illinois soil scientists dispute this view based on analyses of soil samples from the Morrow Plots that date back to before the current practice began.
http://www.sciencedaily.com/releases/2007/10/071029172809.htm

David Yarrow
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