Soil Organic Matter Quality and Glomalin-Related Soil Protein Content in Cambisol
The influence of different mineral and organic fertiliser applications on the soil organic matter (SOM) content and quality was monitored in long-term field trials. We used long-term field experiments (27 years) with a crop rotation of potatoes, winter wheat, and spring barley on cambisol soil. The...
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MDPI AG
2025-03-01
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| Series: | Agronomy |
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| Online Access: | https://www.mdpi.com/2073-4395/15/3/745 |
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| author | Jiří Balík Pavel Suran Jindřich Černý Ondřej Sedlář Martin Kulhánek Simona Procházková |
| author_facet | Jiří Balík Pavel Suran Jindřich Černý Ondřej Sedlář Martin Kulhánek Simona Procházková |
| author_sort | Jiří Balík |
| collection | DOAJ |
| description | The influence of different mineral and organic fertiliser applications on the soil organic matter (SOM) content and quality was monitored in long-term field trials. We used long-term field experiments (27 years) with a crop rotation of potatoes, winter wheat, and spring barley on cambisol soil. The treatments were as follows: an unfertilised control (Cont), sewage sludge in normal and triple doses (SS1 and SS3, respectively), farmyard manure (F1) in a conventional dose, a half dose of farmyard manure with a half dose of mineral nitrogen (F1/2 + N1/2), straw with mineral nitrogen fertiliser (N + St), and mineral nitrogen without any organic fertiliser (N). This study focused on the ability of the total and easily extractable glomalin-related soil protein (T-GRSP and EE-GRSP, respectively) and the water stability of aggregates (WSA) as indicators of long-term SOM quality changes. The results were compared with the content of humic substance fractions and the carbon in humic substances (C<sub>HS</sub>), humic acids (C<sub>HA</sub>), and fulvic acids (C<sub>FA</sub>). The lowest SOM content and quality were observed in the control treatment. The highest overall SOM quality, including the degree of polymerisation (HA) and the GRSP content, was found in the F1 treatment. The organic matter in sewage sludge contributed less to the formation of stable SOM than straw. A significant correlation was found between both the EE-GRSP and the T-GRSP and the content of the C<sub>SOM</sub>, C<sub>HS</sub>, C<sub>HA</sub>, and HA, but not with the C<sub>FA</sub>. The influence of fertiliser on the GRSP content was demonstrated. However, no relationship was observed between the WSA and SOM quality, the EE-GRSP, or the T-GRSP content. |
| format | Article |
| id | doaj-art-e54469c74087466793be6a53a8b7c4d9 |
| institution | OA Journals |
| issn | 2073-4395 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
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| series | Agronomy |
| spelling | doaj-art-e54469c74087466793be6a53a8b7c4d92025-08-20T02:11:04ZengMDPI AGAgronomy2073-43952025-03-0115374510.3390/agronomy15030745Soil Organic Matter Quality and Glomalin-Related Soil Protein Content in CambisolJiří Balík0Pavel Suran1Jindřich Černý2Ondřej Sedlář3Martin Kulhánek4Simona Procházková5Department of Agro—Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500 Prague, Czech RepublicDepartment of Agro—Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500 Prague, Czech RepublicDepartment of Agro—Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500 Prague, Czech RepublicDepartment of Agro—Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500 Prague, Czech RepublicDepartment of Agro—Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500 Prague, Czech RepublicDepartment of Agro—Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500 Prague, Czech RepublicThe influence of different mineral and organic fertiliser applications on the soil organic matter (SOM) content and quality was monitored in long-term field trials. We used long-term field experiments (27 years) with a crop rotation of potatoes, winter wheat, and spring barley on cambisol soil. The treatments were as follows: an unfertilised control (Cont), sewage sludge in normal and triple doses (SS1 and SS3, respectively), farmyard manure (F1) in a conventional dose, a half dose of farmyard manure with a half dose of mineral nitrogen (F1/2 + N1/2), straw with mineral nitrogen fertiliser (N + St), and mineral nitrogen without any organic fertiliser (N). This study focused on the ability of the total and easily extractable glomalin-related soil protein (T-GRSP and EE-GRSP, respectively) and the water stability of aggregates (WSA) as indicators of long-term SOM quality changes. The results were compared with the content of humic substance fractions and the carbon in humic substances (C<sub>HS</sub>), humic acids (C<sub>HA</sub>), and fulvic acids (C<sub>FA</sub>). The lowest SOM content and quality were observed in the control treatment. The highest overall SOM quality, including the degree of polymerisation (HA) and the GRSP content, was found in the F1 treatment. The organic matter in sewage sludge contributed less to the formation of stable SOM than straw. A significant correlation was found between both the EE-GRSP and the T-GRSP and the content of the C<sub>SOM</sub>, C<sub>HS</sub>, C<sub>HA</sub>, and HA, but not with the C<sub>FA</sub>. The influence of fertiliser on the GRSP content was demonstrated. However, no relationship was observed between the WSA and SOM quality, the EE-GRSP, or the T-GRSP content.https://www.mdpi.com/2073-4395/15/3/745GRSPorganic fertiliseraggregate stability |
| spellingShingle | Jiří Balík Pavel Suran Jindřich Černý Ondřej Sedlář Martin Kulhánek Simona Procházková Soil Organic Matter Quality and Glomalin-Related Soil Protein Content in Cambisol Agronomy GRSP organic fertiliser aggregate stability |
| title | Soil Organic Matter Quality and Glomalin-Related Soil Protein Content in Cambisol |
| title_full | Soil Organic Matter Quality and Glomalin-Related Soil Protein Content in Cambisol |
| title_fullStr | Soil Organic Matter Quality and Glomalin-Related Soil Protein Content in Cambisol |
| title_full_unstemmed | Soil Organic Matter Quality and Glomalin-Related Soil Protein Content in Cambisol |
| title_short | Soil Organic Matter Quality and Glomalin-Related Soil Protein Content in Cambisol |
| title_sort | soil organic matter quality and glomalin related soil protein content in cambisol |
| topic | GRSP organic fertiliser aggregate stability |
| url | https://www.mdpi.com/2073-4395/15/3/745 |
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