| Registro completo |
| Provedor de dados: |
Organic Eprints
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| País: |
Germany
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| Título: |
Abschätzung des Risikos einer Schwermetall-Akkumulation in Böden durch längerfristige Anwendung von Recycling- Phosphor-Düngemitteln
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| Autores: |
Weissengruber, Lina
Friedel, Jürgen K.
Möller, Kurt
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| Data: |
2017
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| Ano: |
2017
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| Palavras-chave: |
Soil quality
Composting and manuring
Nutrient turnover
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| Resumo: |
In order to assess the risk of the use of recycled phosphorus (P) fertilisers for organic farming, the potential accumulation of heavy metals in soil after a 200-year fertilizer application equivalent to 11 kg P ha-1 yr-1 was calculated in a mass balance approach. Both fertilizers currently allowed in organic farming and recycled P fertilizers were regarded. For heavy metals, four scenarios with two soil pH levels (pH 5 and pH 7) and two precipitation excess levels (F 0.1 and F 0.3 m yr-1) were calculated. Recycled P fertilizers like struvite, meat- and bone meal, ashes, sewage sludge and digestate, as well as phosphate rock and triple superphosphate had a higher P content and a lower heavy metal-to-P ratio than composts. Consequently, compost application was associated with the highest pollution risk. Only the Cd accumulation with TSP was higher than that with compost. Model calculations do not indicate a significant risk of heavy metal accumulation in soil compromising food quality or soil fertility after longterm application for the assessed recycled P fertilizers.
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| Tipo: |
Conference paper, poster, etc.
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| Idioma: |
Alemão
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| Identificador: |
http://orgprints.org/31898/1/Absch%C3%A4tzung%20des%20Risikos%20einer%20Schwermetall-Akkumulation.pdf
Weissengruber, Lina; Friedel, Jürgen K. and Möller, Kurt (2017) Abschätzung des Risikos einer Schwermetall-Akkumulation in Böden durch längerfristige Anwendung von Recycling- Phosphor-Düngemitteln. Paper at: 14. Wissenschaftstagung Ökologischer Landbau, Campus Weihenstephan, Freising-Weihenstephan, 07.-10. März 2017.
urn:ISBN:978-3-89574-925-4
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| Editor: |
Verlag Dr. Köster, Berlin
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| Relação: |
http://orgprints.org/31898/
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| Formato: |
application/pdf
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