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Título: | The efficiency of a low dose of biochar in enhancing the aromaticity of humic-like substance extracted from poultry manure compost |
Autor: | Jindo, Keiji CSIC ORCID; Sánchez-Monedero, Miguel Ángel CSIC ORCID ; Matsumoto, Kazuhiro; Sonoki, Tomonori | Palabras clave: | Biochar Humification NMR Pyrolysis Composting |
Fecha de publicación: | 18-may-2019 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | Agronomy 9(5): 248 (2019) | Resumen: | Using biochar as a bulking agent in composting is gradually becoming popular for the minimization of nitrogen losses during the process and the improvement in compost quality. While a wide range of different biochar doses is applied, not much clear information was available about the optimum ratio. This study presents the impact of adding a low dose (2% v/v) of slow-pyrolysis oak biochar (Quercus serrate Murray), into poultry manure on the recalcitrant characteristic of humified organic matter. The influence in the chemical composition of humic-like substance was evaluated in poultry manure compost prepared with (PM+B) and without biochar (PM). The shift to slightly more stable chemical composition was shown in humic acid-like (HA) and fulvic acid-like (FA) extracted from PM+B compost, by increasing the proportion of aromatic carbon groups and thermal stability measured by thermogravimetry. We conclude that the addition of 2% biochar moderately enhances the recalcitrance of humified organic carbon and this could be feasible for the implementation of the biochar use in composting since only a small amount is required | Descripción: | © The Author(s). | Versión del editor: | https://doi.org/10.3390/agronomy9050248 | URI: | http://hdl.handle.net/10261/182933 | DOI: | 10.3390/agronomy9050248 | E-ISSN: | 2073-4395 |
Aparece en las colecciones: | (CEBAS) Artículos |
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