Pig slurry fertilization changes the pyrolytic signature of humic substances in calcareous soil
The aim of this study was to determine the effect of progressive pig slurry (PS) rates, applied over a 12-year period, on the molecular composition of soil organic matter in a calcareous soil. Annual organic matter rates of PS ranged from 1.0 to 4.8 Mg ha−1. Humic acids (HAs) were extracted from fie...
| Authors: | ; ; ; |
|---|---|
| Format: | Article |
| Status: | Published version |
| Publication date: | 2025 |
| Country: | España |
| Institution: | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| Repository: | Recercat. Dipósit de la Recerca de Catalunya |
| OAI Identifier: | oai:recercat.cat:10459.1/467748 |
| Online Access: | https://doi.org/10.3390/agronomy15030725 https://hdl.handle.net/10459.1/467748 |
| Access Level: | Open access |
| Keyword: | Aromatic compounds Humic acid Soil organic carbon Analytical pyrolysis Soil amendment |
| _version_ | 1878740492264407040 |
|---|---|
| author | Bosch Serra, Àngela D. |
| author2 | Jiménez-de-Santiagoa, Diana E. González-Pérez, José-Antonio Almendros, Gonzalo |
| author2_role | author author author |
| author_browse | Almendros, Gonzalo Bosch Serra, Àngela D. González-Pérez, José-Antonio Jiménez-de-Santiagoa, Diana E. |
| author_facet | Bosch Serra, Àngela D. Jiménez-de-Santiagoa, Diana E. González-Pérez, José-Antonio Almendros, Gonzalo |
| author_role | author |
| collection | Recercat. Dipósit de la Recerca de Catalunya |
| description | The aim of this study was to determine the effect of progressive pig slurry (PS) rates, applied over a 12-year period, on the molecular composition of soil organic matter in a calcareous soil. Annual organic matter rates of PS ranged from 1.0 to 4.8 Mg ha−1. Humic acids (HAs) were extracted from field plots treated with PS, including a control (no PS applied). These HAs were analysed using pyrolysis-gas chromatography-mass spectrometry. The proportions of the 122 major compounds released from the soil HAs indicated that PS stimulated humification processes, with the degree of enhancement depending on the application rate. The applied PS contained a high proportion of aliphatic compounds, but only steroids and triterpenes accumulated in the HA soil fraction, and this was only observed at low PS rates. These results suggest that the application of PS leads to a dose-dependent increase in alkyl compounds, mainly alkanes and olefins. Aromatic compounds also showed a dose-dependent increase, but not in terms of the demethoxylated compounds typical of mature humic substances found in the original soil. Instead, the increase in aromatics was observed in the form of methoxyphenols, suggesting a recent incorporation of lignin derivatives from crop residues into the HA. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_d3ffc968e7065dbcd6302a7c8a472b7e |
| institution | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| instname_str | Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:recercat.cat:10459.1/467748 |
| publishDate | 2025 |
| publishDateSort | 2025 |
| publisher | MDPI |
| publisherStr | MDPI |
| reponame_str | Recercat. Dipósit de la Recerca de Catalunya |
| spelling | Pig slurry fertilization changes the pyrolytic signature of humic substances in calcareous soil Bosch Serra, Àngela D. Jiménez-de-Santiagoa, Diana E. González-Pérez, José-Antonio Almendros, Gonzalo Aromatic compounds Humic acid Soil organic carbon Analytical pyrolysis Soil amendment The aim of this study was to determine the effect of progressive pig slurry (PS) rates, applied over a 12-year period, on the molecular composition of soil organic matter in a calcareous soil. Annual organic matter rates of PS ranged from 1.0 to 4.8 Mg ha−1. Humic acids (HAs) were extracted from field plots treated with PS, including a control (no PS applied). These HAs were analysed using pyrolysis-gas chromatography-mass spectrometry. The proportions of the 122 major compounds released from the soil HAs indicated that PS stimulated humification processes, with the degree of enhancement depending on the application rate. The applied PS contained a high proportion of aliphatic compounds, but only steroids and triterpenes accumulated in the HA soil fraction, and this was only observed at low PS rates. These results suggest that the application of PS leads to a dose-dependent increase in alkyl compounds, mainly alkanes and olefins. Aromatic compounds also showed a dose-dependent increase, but not in terms of the demethoxylated compounds typical of mature humic substances found in the original soil. Instead, the increase in aromatics was observed in the form of methoxyphenols, suggesting a recent incorporation of lignin derivatives from crop residues into the HA. This research was funded by the Spanish Ministry of Science, Innovation and Universities and the Spanish National Institute for Agronomic Research (MICINN-INIA) through the project RTA2017-88-C3-3. MDPI https://doi.org/10.3390/agronomy15030725 https://hdl.handle.net/10459.1/467748 |
| spellingShingle | Pig slurry fertilization changes the pyrolytic signature of humic substances in calcareous soil Bosch Serra, Àngela D. Aromatic compounds Humic acid Soil organic carbon Analytical pyrolysis Soil amendment |
| status_str | publishedVersion |
| title | Pig slurry fertilization changes the pyrolytic signature of humic substances in calcareous soil |
| title_full | Pig slurry fertilization changes the pyrolytic signature of humic substances in calcareous soil |
| title_fullStr | Pig slurry fertilization changes the pyrolytic signature of humic substances in calcareous soil |
| title_full_unstemmed | Pig slurry fertilization changes the pyrolytic signature of humic substances in calcareous soil |
| title_short | Pig slurry fertilization changes the pyrolytic signature of humic substances in calcareous soil |
| title_sort | Pig slurry fertilization changes the pyrolytic signature of humic substances in calcareous soil |
| topic | Aromatic compounds Humic acid Soil organic carbon Analytical pyrolysis Soil amendment |
| topic_facet | Aromatic compounds Humic acid Soil organic carbon Analytical pyrolysis Soil amendment |
| url | https://doi.org/10.3390/agronomy15030725 https://hdl.handle.net/10459.1/467748 |