Dissolved organic carbon, a critical factor to increase the bioavailability of phosphorus during biochar-amended aerobic composting

•The activation mechanism on P attributed to DOC was investigated.•NaHCO3-Pi, NaOH-Pi and HCl-Pi were main P-fractions.•Biochar promoted the composting humification and increased the P-bioavailability.•DOC prevented phosphate binning with calcium ions and increased NaHCO3-P content. Considerable res...

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Veröffentlicht in:	Journal of environmental sciences (China) 2022-03, Vol.113, p.356-364
Hauptverfasser:	Cui, Hu, Ou, Yang, Wang, Lixia, Yan, Baixing, Li, Yingxin, Bao, Meiwen
Format:	Artikel
Sprache:	eng
Schlagworte:	Biochar Biological Availability Charcoal Co-composting Composting Dissolved organic carbon Dissolved Organic Matter Phosphorus Phosphorus fractions Soil
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