Electron donor capacity of reducing dissolved organic matter from crop residue decomposition as probed by chronoamperometry

- RDOMs produced from residue decomposition have great effects on soil properties.
- Chronoamperometry was applied to quantify RDOMs' electron donor capacity.
- The electrochemical properties of RDOMs were rapidly and accurately characterized.
- Knowledge on electrochemical properties of RDOMs can improve residue management.