The Composition of Dissolved Organic Matter in Arable Lands: Does Soil Management Practice Matter?
Dissolved organic matter (DOM) is a key soil quality property, indicative of the organic matter stored in the soil, which may also be a function of temporal variation. This study examines whether DOM is a robust property of the soil, controlling fertility, or if it may change with time. Altogether e...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/12/11/2797 |
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| author | Thulfiqar Al-Graiti Gergely Jakab Noémi Ujházy Anna Vancsik Nándor Fodor Tamás Árendás Balázs Madarász Zoltán Barcza Károly Márialigeti Zoltán Szalai |
| author_facet | Thulfiqar Al-Graiti Gergely Jakab Noémi Ujházy Anna Vancsik Nándor Fodor Tamás Árendás Balázs Madarász Zoltán Barcza Károly Márialigeti Zoltán Szalai |
| author_sort | Thulfiqar Al-Graiti |
| collection | DOAJ |
| description | Dissolved organic matter (DOM) is a key soil quality property, indicative of the organic matter stored in the soil, which may also be a function of temporal variation. This study examines whether DOM is a robust property of the soil, controlling fertility, or if it may change with time. Altogether eight sets of soil samples were collected in 2018 and 2019 from the cultivated topsoil (0–10 cm) of cropland and from a nearby grassland near Martonvásár, Hungary. The study sites were characterized by Chernozem soil and were part of a long-term experimental project comparing the effects of manure application and fertilization to the control under maize and wheat monocultures. DOM was extracted from the samples with distilled water. The dissolved organic carbon (DOC), total dissolved nitrogen (DN), biological index (BIX), fluorescence index (FI), humification index (HIX), carbon nitrogen (C/N) ratio and specific ultraviolet absorbance at 254 nm (SUVA<sub>254</sub>) index were studied in the arable soils, and the results showed that all the DOM samples were humified, suggesting relevant microbiological contributions to the decomposition of OM and its conversion into more complex molecules (FI = 1.2–1.5, BIX = ~0.5, and HIX = ~0.9). Temporal variations were detected only for the permanent grassland where higher DOM concentration was found in spring. This increased DOM content mainly originated from humified, solid phase associated, recalcitrant OM. In contrast, there were no differences among fertilization treatments and sampling dates under cropfield conditions. Moreover, climatic conditions were not proven as a general ruler of DOM properties. Therefore, momentary DOM alone is not necessarily the direct property of soil organic matter under cropfield conditions. The application of this measure needs further details of sampling conditions to achieve adequate comparability. |
| first_indexed | 2024-03-09T19:21:03Z |
| format | Article |
| id | doaj.art-654da7c9b0fc4779b5a6e88c7e04df31 |
| institution | Directory Open Access Journal |
| issn | 2073-4395 |
| language | English |
| last_indexed | 2024-03-09T19:21:03Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Agronomy |
| spelling | doaj.art-654da7c9b0fc4779b5a6e88c7e04df312023-11-24T03:22:31ZengMDPI AGAgronomy2073-43952022-11-011211279710.3390/agronomy12112797The Composition of Dissolved Organic Matter in Arable Lands: Does Soil Management Practice Matter?Thulfiqar Al-Graiti0Gergely Jakab1Noémi Ujházy2Anna Vancsik3Nándor Fodor4Tamás Árendás5Balázs Madarász6Zoltán Barcza7Károly Márialigeti8Zoltán Szalai9Department of Environmental and Landscape Geography, ELTE Eötvös Loránd University, H-1117 Budapest, HungaryDepartment of Environmental and Landscape Geography, ELTE Eötvös Loránd University, H-1117 Budapest, HungaryGeographical Institute, Research Centre for Astronomy and Earth Sciences, H-1112 Budapest, HungaryDepartment of Environmental and Landscape Geography, ELTE Eötvös Loránd University, H-1117 Budapest, HungaryAgricultural Institute, Centre for Agricultural Research, H-2462 Martonvásár, HungaryAgricultural Institute, Centre for Agricultural Research, H-2462 Martonvásár, HungaryGeographical Institute, Research Centre for Astronomy and Earth Sciences, H-1112 Budapest, HungaryFaculty of Forestry and Wood Sciences, Czech University of Life Sciences Prague, 165 21 Prague, Czech RepublicDepartment of Microbiology, ELTE Eötvös Loránd University, H-1117 Budapest, HungaryDepartment of Environmental and Landscape Geography, ELTE Eötvös Loránd University, H-1117 Budapest, HungaryDissolved organic matter (DOM) is a key soil quality property, indicative of the organic matter stored in the soil, which may also be a function of temporal variation. This study examines whether DOM is a robust property of the soil, controlling fertility, or if it may change with time. Altogether eight sets of soil samples were collected in 2018 and 2019 from the cultivated topsoil (0–10 cm) of cropland and from a nearby grassland near Martonvásár, Hungary. The study sites were characterized by Chernozem soil and were part of a long-term experimental project comparing the effects of manure application and fertilization to the control under maize and wheat monocultures. DOM was extracted from the samples with distilled water. The dissolved organic carbon (DOC), total dissolved nitrogen (DN), biological index (BIX), fluorescence index (FI), humification index (HIX), carbon nitrogen (C/N) ratio and specific ultraviolet absorbance at 254 nm (SUVA<sub>254</sub>) index were studied in the arable soils, and the results showed that all the DOM samples were humified, suggesting relevant microbiological contributions to the decomposition of OM and its conversion into more complex molecules (FI = 1.2–1.5, BIX = ~0.5, and HIX = ~0.9). Temporal variations were detected only for the permanent grassland where higher DOM concentration was found in spring. This increased DOM content mainly originated from humified, solid phase associated, recalcitrant OM. In contrast, there were no differences among fertilization treatments and sampling dates under cropfield conditions. Moreover, climatic conditions were not proven as a general ruler of DOM properties. Therefore, momentary DOM alone is not necessarily the direct property of soil organic matter under cropfield conditions. The application of this measure needs further details of sampling conditions to achieve adequate comparability.https://www.mdpi.com/2073-4395/12/11/2797dissolved organic carbon (DOC)total dissolved nitrogen (DN)DOM compositionSUVA254fertilizationC/N ratio |
| spellingShingle | Thulfiqar Al-Graiti Gergely Jakab Noémi Ujházy Anna Vancsik Nándor Fodor Tamás Árendás Balázs Madarász Zoltán Barcza Károly Márialigeti Zoltán Szalai The Composition of Dissolved Organic Matter in Arable Lands: Does Soil Management Practice Matter? Agronomy dissolved organic carbon (DOC) total dissolved nitrogen (DN) DOM composition SUVA254 fertilization C/N ratio |
| title | The Composition of Dissolved Organic Matter in Arable Lands: Does Soil Management Practice Matter? |
| title_full | The Composition of Dissolved Organic Matter in Arable Lands: Does Soil Management Practice Matter? |
| title_fullStr | The Composition of Dissolved Organic Matter in Arable Lands: Does Soil Management Practice Matter? |
| title_full_unstemmed | The Composition of Dissolved Organic Matter in Arable Lands: Does Soil Management Practice Matter? |
| title_short | The Composition of Dissolved Organic Matter in Arable Lands: Does Soil Management Practice Matter? |
| title_sort | composition of dissolved organic matter in arable lands does soil management practice matter |
| topic | dissolved organic carbon (DOC) total dissolved nitrogen (DN) DOM composition SUVA254 fertilization C/N ratio |
| url | https://www.mdpi.com/2073-4395/12/11/2797 |
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