Phosphorus Speciation in Agro-Industrial Byproducts: Sequential Fractionation, Solution31P NMR, and PK- andL2,3-Edge XANES Spectroscopy

2010 ◽  
Vol 44 (6) ◽  
pp. 2092-2097 ◽  
Author(s):  
Wakene Negassa ◽  
Jens Kruse ◽  
Dirk Michalik ◽  
Narayana Appathurai ◽  
Lucia Zuin ◽  
...  
Keyword(s):  
Xanes Spectroscopy ◽  
Phosphorus Speciation ◽  
Sequential Fractionation ◽  
Industrial Byproducts

Determination of Phosphorus Speciation in Dairy Manure using XRD and XANES Spectroscopy

2007 ◽  
Vol 36 (6) ◽  
pp. 1856-1863 ◽  
Author(s):  
Kerem Güngör ◽  
Astrid Jürgensen ◽  
K. G. Karthikeyan
Keyword(s):  
Dairy Manure ◽  
Xanes Spectroscopy ◽  
Phosphorus Speciation

scholarly journals Bone char effects on soil: sequential fractionations and XANES spectroscopy

SOIL ◽  
2018 ◽  
Vol 4 (1) ◽  
pp. 23-35 ◽  
Author(s):  
Mohsen Morshedizad ◽  
Kerstin Panten ◽  
Wantana Klysubun ◽  
Peter Leinweber
Keyword(s):  
Xanes Spectroscopy ◽  
Bone Char ◽  
Reduced Sulfur Compounds ◽  
Sequential Fractionation ◽  
P Fractionation ◽  
Edge Structure ◽  
Amended Soils ◽  
Soil P ◽  
P Fraction ◽  
Sequential P Fractionation

Abstract. The acceptability of novel bone char fertilizers depends on their P release, but reactions at bone char surfaces and impacts on soil P speciation are insufficiently known. By using sequential fractionation and synchrotron-based X-ray absorption near-edge structure (XANES) spectroscopy we investigated whether and how the chemical composition of bone char particles has been altered in soil and has consequently affected the P speciation of amended soils. Therefore, two different kinds of bone char particles (BC produced by the pyrolysis of degreased animal bone chips at 800 °C and BCplus, a BC enriched with reduced sulfur compounds) were manually separated from the soil at the end of two different experiments: incubation leaching and ryegrass cultivation. Sequential P fractionation of amended soils showed P enrichment in all fractions compared to the control. The most P increase between all treatments significantly occurred in the NaOH–P and resin-P fractions in response to BCplus application in both incubation-leaching and ryegrass cultivation experiments. This increase in the readily available P fraction in BCplus-treated soils was confirmed by linear combination fitting (LCF) analysis on P K-edge XANES spectra of BC particles and amended soils. The proportion of Ca hydroxyapatite decreased, whereas the proportion of CaHPO4 increased in BCplus particles after amended soils had been incubated and leached and cropped by ryegrass. Based on P XANES speciation as determined by LCF analysis, the proportion of inorganic Ca(H2PO4)2 increased in amended soils after BCplus application. These results indicate that soil amendment with BCplus particles leads to elevated P concentration and maintains more soluble P species than BC particles even after 230 days of ryegrass cultivation.

scholarly journals Phosphorus speciation in cultivated organic soils revealed by P K-edge XANES spectroscopy

2020 ◽  
Vol 183 (3) ◽  
pp. 367-381
Author(s):  
Frank Schmieder ◽  
Jon Petter Gustafsson ◽  
Wantana Klysubun ◽  
Franz Zehetner ◽  
Matthew Riddle ◽  
...  
Keyword(s):  
Xanes Spectroscopy ◽  
Organic Soils ◽  
Phosphorus Speciation

Phosphorus Speciation in Manure and Manure-Amended Soils Using XANES Spectroscopy

2005 ◽  
Vol 39 (19) ◽  
pp. 7485-7491 ◽  
Author(s):  
Shinjiro Sato ◽  
Dawit Solomon ◽  
Charles Hyland ◽  
Quirine M. Ketterings ◽  
Johannes Lehmann
Keyword(s):  
Xanes Spectroscopy ◽  
Phosphorus Speciation ◽  
Amended Soils

Phosphorus speciation in a long-term manure-amended soil profile – Evidence from wet chemical extraction, 31P-NMR and P K-edge XANES spectroscopy

Geoderma ◽  
2018 ◽  
Vol 322 ◽  
pp. 19-27 ◽  
Author(s):  
Frank Schmieder ◽  
Lars Bergström ◽  
Matthew Riddle ◽  
Jon-Petter Gustafsson ◽  
Wantana Klysubun ◽  
...  
Keyword(s):  
Soil Profile ◽  
31P Nmr ◽  
Xanes Spectroscopy ◽  
Chemical Extraction ◽  
Phosphorus Speciation ◽  
Wet Chemical ◽  
Amended Soil

scholarly journals Bone char effects on soil: sequential fractionations and XANES spectroscopy

2017 ◽  
Author(s):  
Mohsen Morshedizad ◽  
Kerstin Panten ◽  
Wantana Klysubun ◽  
Peter Leinweber
Keyword(s):  
Xanes Spectroscopy ◽  
Bone Char ◽  
Reduced Sulfur Compounds ◽  
Sequential Fractionation ◽  
P Fractionation ◽  
Edge Structure ◽  
Amended Soils ◽  
Soil P ◽  
P Fraction ◽  
Sequential P Fractionation

Abstract. Acceptability of novel bone char fertilizers depends on their P release but reactions at bone char surfaces and impacts to soil P speciation are insufficiently known. By sequential fractionation and synchrotron-based X-ray absorption near edge structure (XANES) spectroscopy we investigated whether and how the chemical composition of bone char particles has been altered in soil and, consequently, has affected the P speciation of amended soils. Therefore, two different kinds of bone char particles (BC, produced by pyrolysis of degreased animal bone chips at 800 ºC and BCplus, a BC enriched with reduced sulfur compounds) were manually separated from the soil at the end of two different experiments: incubation-leaching and ryegrass cultivation. Sequential P-fractionation of amended soils showed P-enrichment in all fractions as compared to the control. The most P increase between all treatments significantly occurred in the NaOH-P and resin-P fractions in response to BCplus application in both, incubation-leaching and ryegrass cultivation experiments. This increase of the readily available P fraction in BCplus treated soils was confirmed by linear combination fitting (LCF) analysis on P K-edge XANES spectra of BCs particles and amended soils. The proportion of Ca-hydroxyapatite decreased, whereas the proportion of CaHPO4 increased in BCplus particles after amended soils had been incubated and leached and cropped by ryegrass. Based on P-XANES speciation as determined by LCF analysis, the proportion of inorganic Ca(H2PO4)2 increased in amended soils after BCplus application. These results indicated that soil amendment with BCplus particles leads to elevated P concentration and maintains more soluble P species than BC particles even after 230-days of ryegrass cultivation.

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