Effect of Land Application of Phosphorus-Saturated Gypsum on Soil Phosphorus in a Laboratory Incubation
Agricultural drainage ditches can deliver high loads of phosphorus (P) to surface water. Installation of filter structures containing P sorbing materials (PSMs), including gypsum, is an emerging practice that has shown promise to reduce these P loads. The objective of this study was to evaluate what...
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| Format: | Article |
| Language: | English |
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Wiley
2012-01-01
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| Series: | Applied and Environmental Soil Science |
| Online Access: | http://dx.doi.org/10.1155/2012/506951 |
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| author | Karen L. Grubb Joshua M. McGrath Chad J. Penn Ray B. Bryant |
| author_facet | Karen L. Grubb Joshua M. McGrath Chad J. Penn Ray B. Bryant |
| author_sort | Karen L. Grubb |
| collection | DOAJ |
| description | Agricultural drainage ditches can deliver high loads of phosphorus (P) to surface water. Installation of filter structures containing P sorbing materials (PSMs), including gypsum, is an emerging practice that has shown promise to reduce these P loads. The objective of this study was to evaluate what effect soil amendment with gypsum would have on soil P concentrations and forms in a laboratory incubation experiment. Gypsum was saturated at two levels with P, and applied to a silt loam and a sandy loam at two rates. The treated soils were incubated in the laboratory at 25°C, and samples were collected on eight dates between 0 and 183 days after amendment. Spent gypsum application did not significantly increase soil water-extractable or Mehlich 3 P when applied at typical agronomic rates. This appears to be a viable strategy to remove P from agricultural drainage waters but does not appear to provide any additional P fertilizer value. |
| format | Article |
| id | doaj-art-4c874e75d8e447e3925f7eebc8d35ab2 |
| institution | Kabale University |
| issn | 1687-7667 1687-7675 |
| language | English |
| publishDate | 2012-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Applied and Environmental Soil Science |
| spelling | doaj-art-4c874e75d8e447e3925f7eebc8d35ab22025-08-20T03:34:18ZengWileyApplied and Environmental Soil Science1687-76671687-76752012-01-01201210.1155/2012/506951506951Effect of Land Application of Phosphorus-Saturated Gypsum on Soil Phosphorus in a Laboratory IncubationKaren L. Grubb0Joshua M. McGrath1Chad J. Penn2Ray B. Bryant3USDA, National Institute of Food and Agriculture, Waterfront Centre, Washington, DC 20024, USADepartment of Environmental Science and Technology, University of Maryland, College Park, MD 20742, USADepartment of Plant and Soil Sciences, Oklahoma State University, Stillwater, OK 74078, USAUSDA, Agricultural Research Service, Bldg. 3702, Curtin Road, University Park, PA 16802, USAAgricultural drainage ditches can deliver high loads of phosphorus (P) to surface water. Installation of filter structures containing P sorbing materials (PSMs), including gypsum, is an emerging practice that has shown promise to reduce these P loads. The objective of this study was to evaluate what effect soil amendment with gypsum would have on soil P concentrations and forms in a laboratory incubation experiment. Gypsum was saturated at two levels with P, and applied to a silt loam and a sandy loam at two rates. The treated soils were incubated in the laboratory at 25°C, and samples were collected on eight dates between 0 and 183 days after amendment. Spent gypsum application did not significantly increase soil water-extractable or Mehlich 3 P when applied at typical agronomic rates. This appears to be a viable strategy to remove P from agricultural drainage waters but does not appear to provide any additional P fertilizer value.http://dx.doi.org/10.1155/2012/506951 |
| spellingShingle | Karen L. Grubb Joshua M. McGrath Chad J. Penn Ray B. Bryant Effect of Land Application of Phosphorus-Saturated Gypsum on Soil Phosphorus in a Laboratory Incubation Applied and Environmental Soil Science |
| title | Effect of Land Application of Phosphorus-Saturated Gypsum on Soil Phosphorus in a Laboratory Incubation |
| title_full | Effect of Land Application of Phosphorus-Saturated Gypsum on Soil Phosphorus in a Laboratory Incubation |
| title_fullStr | Effect of Land Application of Phosphorus-Saturated Gypsum on Soil Phosphorus in a Laboratory Incubation |
| title_full_unstemmed | Effect of Land Application of Phosphorus-Saturated Gypsum on Soil Phosphorus in a Laboratory Incubation |
| title_short | Effect of Land Application of Phosphorus-Saturated Gypsum on Soil Phosphorus in a Laboratory Incubation |
| title_sort | effect of land application of phosphorus saturated gypsum on soil phosphorus in a laboratory incubation |
| url | http://dx.doi.org/10.1155/2012/506951 |
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