Preferential Alternatives to Returning All Crop Residues as Biochar to the Crop Field? A Three-Source 13C and 14C

Xiaowen Ji1,2, Evgeny Abakumov2, Xianchuan Xie1

  • 1State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment , Nanjing University , Nanjing 210093 , P.R. China.

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