Phosphorus release from intact soil monoliths of manure‐amended fields under simulated snowmelt flooding
| Autor: | Saman Dharmakeerthi, Doug Goltz, Wole Akinremi, Darshani Kumaragamage, Angela Concepcion, S. P. Indraratne |
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| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Swine chemistry.chemical_element 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Redox Soil Pore water pressure Animal science Freezing Animals Organic matter Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology chemistry.chemical_classification Phosphorus fungi 04 agricultural and veterinary sciences 15. Life on land Pollution Manure Floods 6. Clean water chemistry Snowmelt Soil water 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Anaerobic exercise |
| Zdroj: | Journal of Environmental Quality. 50:252-263 |
| ISSN: | 1537-2537 0047-2425 |
| Popis: | Anaerobic conditions developed in soils with flooding can enhance the release of soil P to overlying water, but little information is available for soils with a long history of manure application. We examined the P release from manure-amended soils under simulated snowmelt flooding. Intact monoliths from manured (solid swine manure [SSM] or liquid swine manure [LSM]) and unamended (control) field plots were collected from Carman, Manitoba. Monoliths were frozen for 7 d, thawed, flooded, and incubated at 4 ± 1 °C. Redox potential, pH, and concentrations of dissolved reactive P (DRP), Ca, Mg, Fe, and Mn in pore water and floodwater were determined weekly up to 56 d after flooding (DAF) and at 84 DAF. Redox potential decreased with DAF with a greater and more rapid decrease in SSM (from ∼300 to |
| Databáze: | OpenAIRE |
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