Temperature Effects on Phosphorus Release from a Biosolids-Amended Soil
This study was designed to evaluate the effects of temperature on the potential leachable P pool and distribution of chemical P forms in a biosolids-amended soil. A P-deficient Spodosol was incubated with seven biosolids and inorganic P fertilizer at 20 and 32°C for 90 days. Amendments were applied...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Applied and Environmental Soil Science |
| Online Access: | http://dx.doi.org/10.1155/2013/981715 |
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| author | Maria L. Silveira George A. O'Connor |
| author_facet | Maria L. Silveira George A. O'Connor |
| author_sort | Maria L. Silveira |
| collection | DOAJ |
| description | This study was designed to evaluate the effects of temperature on the potential leachable P pool and distribution of chemical P forms in a biosolids-amended soil. A P-deficient Spodosol was incubated with seven biosolids and inorganic P fertilizer at 20 and 32°C for 90 days. Amendments were applied to provide a total P concentration of 112 mg kg−1 soil, which correspond to a field application of ~224 kg P ha−1. Cumulative P mass leached during the 90 d study for any P source was <2% of the applied P, but greater cumulative P mass was released from the biological P removal and composted biosolids than from the heat-dried materials. Increasing temperature (20 to 32°C) generally decreased cumulative P mass leached, suggesting greater soil affinity to retain P at 32°C than at 20°C. In a static incubation experiment (no leaching), soil water-extractable P concentrations were reduced over time, but no temperature effect was observed. Similarly, P distribution among the various fractions was not affected by temperature. The relatively great ability of the soil to sorb P masked differences in biosolids properties and the potential impacts of temperature on P lability. Additional work using low P-sorbing soils is warranted. |
| format | Article |
| id | doaj-art-a1055bdade3a4eaa822d197c29c64dfe |
| institution | OA Journals |
| issn | 1687-7667 1687-7675 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied and Environmental Soil Science |
| spelling | doaj-art-a1055bdade3a4eaa822d197c29c64dfe2025-08-20T02:20:52ZengWileyApplied and Environmental Soil Science1687-76671687-76752013-01-01201310.1155/2013/981715981715Temperature Effects on Phosphorus Release from a Biosolids-Amended SoilMaria L. Silveira0George A. O'Connor1Range Cattle Research and Education Center, University of Florida, 3401 Experiment Station, Ona, FL 33865, USASoil and Water Science Department, University of Florida, 2181 McCarty Hall, Gainesville, FL 32611, USAThis study was designed to evaluate the effects of temperature on the potential leachable P pool and distribution of chemical P forms in a biosolids-amended soil. A P-deficient Spodosol was incubated with seven biosolids and inorganic P fertilizer at 20 and 32°C for 90 days. Amendments were applied to provide a total P concentration of 112 mg kg−1 soil, which correspond to a field application of ~224 kg P ha−1. Cumulative P mass leached during the 90 d study for any P source was <2% of the applied P, but greater cumulative P mass was released from the biological P removal and composted biosolids than from the heat-dried materials. Increasing temperature (20 to 32°C) generally decreased cumulative P mass leached, suggesting greater soil affinity to retain P at 32°C than at 20°C. In a static incubation experiment (no leaching), soil water-extractable P concentrations were reduced over time, but no temperature effect was observed. Similarly, P distribution among the various fractions was not affected by temperature. The relatively great ability of the soil to sorb P masked differences in biosolids properties and the potential impacts of temperature on P lability. Additional work using low P-sorbing soils is warranted.http://dx.doi.org/10.1155/2013/981715 |
| spellingShingle | Maria L. Silveira George A. O'Connor Temperature Effects on Phosphorus Release from a Biosolids-Amended Soil Applied and Environmental Soil Science |
| title | Temperature Effects on Phosphorus Release from a Biosolids-Amended Soil |
| title_full | Temperature Effects on Phosphorus Release from a Biosolids-Amended Soil |
| title_fullStr | Temperature Effects on Phosphorus Release from a Biosolids-Amended Soil |
| title_full_unstemmed | Temperature Effects on Phosphorus Release from a Biosolids-Amended Soil |
| title_short | Temperature Effects on Phosphorus Release from a Biosolids-Amended Soil |
| title_sort | temperature effects on phosphorus release from a biosolids amended soil |
| url | http://dx.doi.org/10.1155/2013/981715 |
| work_keys_str_mv | AT marialsilveira temperatureeffectsonphosphorusreleasefromabiosolidsamendedsoil AT georgeaoconnor temperatureeffectsonphosphorusreleasefromabiosolidsamendedsoil |