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. Author manuscript; available in PMC: 2018 Apr 13.
Published in final edited form as: Soil Sci Soc Am J. 2016 Jun 24;80(3):613–622. doi: 10.2136/sssaj2015.11.0414

Fig. 1.

Fig. 1

Fourier-transform infrared spectra of the two biochars in the fresh state, i.e., before addition to the soils: B450 and B550 biochars were produced at 450 and 550°C, respectively.