![Aged biochar changed copper availability and distribution among soil fractions and influenced corn seed germination in a copper-contaminated soil - ScienceDirect Aged biochar changed copper availability and distribution among soil fractions and influenced corn seed germination in a copper-contaminated soil - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0045653519X00211-cov150h.gif)
Aged biochar changed copper availability and distribution among soil fractions and influenced corn seed germination in a copper-contaminated soil - ScienceDirect
![Aged biochar changed copper availability and distribution among soil fractions and influenced corn seed germination in a copper-contaminated soil - ScienceDirect Aged biochar changed copper availability and distribution among soil fractions and influenced corn seed germination in a copper-contaminated soil - ScienceDirect](https://ars.els-cdn.com/content/image/1-s2.0-S0045653519320673-egi10FS0WKTXM4.jpg)
Aged biochar changed copper availability and distribution among soil fractions and influenced corn seed germination in a copper-contaminated soil - ScienceDirect
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