Effect of liming on microbial biomass carbon of acidic arenosols in pot experiments
In the paper we investigate the effect of liming on the microbial biomass carbon (MBC) in pot experiments during two vegetation periods. There was also another goal to get better understanding of the role of dissolved organic matter (DOM) and its quality on microbial processes. Pot experiments were...
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| Format: | Article |
| Language: | English |
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Czech Academy of Agricultural Sciences
2010-06-01
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| Series: | Plant, Soil and Environment |
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| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201006-0003_effect-of-liming-on-microbial-biomass-carbon-of-acidic-arenosols-in-pot-experiments.php |
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| author | T. Filep T. Szili-Kovács |
| author_facet | T. Filep T. Szili-Kovács |
| author_sort | T. Filep |
| collection | DOAJ |
| description | In the paper we investigate the effect of liming on the microbial biomass carbon (MBC) in pot experiments during two vegetation periods. There was also another goal to get better understanding of the role of dissolved organic matter (DOM) and its quality on microbial processes. Pot experiments were carried out on two acidic soils. Liming material treatment was 0, 1, 2, 3 g CaCO3/kg soil (corresponding with 0, 1.4, 2.8, 4.1 t CaCO3/ha, respectively). On both soils, 3-3 soil samples were taken for two growing periods and the substrate-induced respiration (SIR), dissolved organic carbon and nitrogen (DOC and DON), and soil pH were determined from the soil samples. The SIR can be used to characterize the active biomass within the total microbial biomass. Liming was found to increase soil respiration and consequently MBC in the first year of the experiment, but at the maximum lime rate these values stagnated or declined in many cases on each soil. In the second year, the effects of treatments were much lower both on Kisvárda and on Nyírlugos soils. Under the given experimental conditions, when the DOC/DON ratio rose to above 30-40, disturbances appeared in N supplies to microorganisms. The N content of the easily mineralisable organic matter in the soil became so low that it inhibited the reproduction of the microorganisms. |
| first_indexed | 2024-04-10T08:11:23Z |
| format | Article |
| id | doaj.art-eda5cfbd29d94ead91b34e2b934d52a5 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:11:23Z |
| publishDate | 2010-06-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-eda5cfbd29d94ead91b34e2b934d52a52023-02-23T03:45:38ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682010-06-0156626827310.17221/174/2009-PSEpse-201006-0003Effect of liming on microbial biomass carbon of acidic arenosols in pot experimentsT. Filep0T. Szili-Kovács1Research Institute for Soil Science and Agricultural Chemistry, Budapest, HungaryResearch Institute for Soil Science and Agricultural Chemistry, Budapest, HungaryIn the paper we investigate the effect of liming on the microbial biomass carbon (MBC) in pot experiments during two vegetation periods. There was also another goal to get better understanding of the role of dissolved organic matter (DOM) and its quality on microbial processes. Pot experiments were carried out on two acidic soils. Liming material treatment was 0, 1, 2, 3 g CaCO3/kg soil (corresponding with 0, 1.4, 2.8, 4.1 t CaCO3/ha, respectively). On both soils, 3-3 soil samples were taken for two growing periods and the substrate-induced respiration (SIR), dissolved organic carbon and nitrogen (DOC and DON), and soil pH were determined from the soil samples. The SIR can be used to characterize the active biomass within the total microbial biomass. Liming was found to increase soil respiration and consequently MBC in the first year of the experiment, but at the maximum lime rate these values stagnated or declined in many cases on each soil. In the second year, the effects of treatments were much lower both on Kisvárda and on Nyírlugos soils. Under the given experimental conditions, when the DOC/DON ratio rose to above 30-40, disturbances appeared in N supplies to microorganisms. The N content of the easily mineralisable organic matter in the soil became so low that it inhibited the reproduction of the microorganisms.https://pse.agriculturejournals.cz/artkey/pse-201006-0003_effect-of-liming-on-microbial-biomass-carbon-of-acidic-arenosols-in-pot-experiments.phplimingacid soilsmicrobial biomass carbondissolved organic matterdissolved organic carbondissolved organic nitrogen |
| spellingShingle | T. Filep T. Szili-Kovács Effect of liming on microbial biomass carbon of acidic arenosols in pot experiments Plant, Soil and Environment liming acid soils microbial biomass carbon dissolved organic matter dissolved organic carbon dissolved organic nitrogen |
| title | Effect of liming on microbial biomass carbon of acidic arenosols in pot experiments |
| title_full | Effect of liming on microbial biomass carbon of acidic arenosols in pot experiments |
| title_fullStr | Effect of liming on microbial biomass carbon of acidic arenosols in pot experiments |
| title_full_unstemmed | Effect of liming on microbial biomass carbon of acidic arenosols in pot experiments |
| title_short | Effect of liming on microbial biomass carbon of acidic arenosols in pot experiments |
| title_sort | effect of liming on microbial biomass carbon of acidic arenosols in pot experiments |
| topic | liming acid soils microbial biomass carbon dissolved organic matter dissolved organic carbon dissolved organic nitrogen |
| url | https://pse.agriculturejournals.cz/artkey/pse-201006-0003_effect-of-liming-on-microbial-biomass-carbon-of-acidic-arenosols-in-pot-experiments.php |
| work_keys_str_mv | AT tfilep effectoflimingonmicrobialbiomasscarbonofacidicarenosolsinpotexperiments AT tszilikovacs effectoflimingonmicrobialbiomasscarbonofacidicarenosolsinpotexperiments |