Speciation of Phosphorus in Phosphorus‐Enriched Agricultural Soils Using X‐Ray Absorption Near‐Edge Structure Spectroscopy and Chemical Fractionation

Beauchemin, Suzanne; Hesterberg, Dean; Chou, Jeff W.; Beauchemin, M.; Simard, R. R.; Sayers, D. E.

doi:10.2134/jeq2003.1809

Cited by 295 publications

(324 citation statements)

References 46 publications

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“…2f). This finding is in agreement with the generally accepted view that there is less adsorbed P in alkaline than in slightly acidic environments (e.g., Beauchemin et al 2003). Figure 2c,f shows that OCP and adsorbed P were the compounds that differed most significantly between slightly acidic and slightly Koerselman and Meuleman (1996).…”

Section: Discussionsupporting

confidence: 91%

Mangrove reforestation in Vietnam: the effect of sediment physicochemical properties on nutrient cycling

Oxmann

Pham²,

Schwendenmann

et al. 2009

Plant Soil

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Sediment physicochemical properties most likely control the reforestation success on degraded mangrove sites. Our objectives were (1) to determine the nutritional status of reforested mangrove stands; (2) to investigate the effects of the redox potential (Eh) and pH on phosphorus (P) and nitrogen (N) cycling; and (3) to assess the effect of pH on P speciation. Five transects were studied in replanted stands of the Saigon River Delta, Vietnam. Spatial gradients of sediment Eh and pH were affected by the tidal regime and pyrite oxidation. Sediment Al/Fe-P correlated with Eh or pH, depending on the sediment layer, whereas Ca-P, Morgan-P (available P) and leaf P were influenced by the pH. The highest concentrations of Al/Fe-P were recorded at pH 6.5 probably due to adsorption effects. Sediment Ca-P increased strongly at pH below 4 and above 6, reflecting the different pHdependent solubilities of individual Ca-P mineral species as shown by a newly developed method for P species quantification. A strong increase of available P and leaf P above pH 6, and positive correlations of available P vs Ca-P (P<0.001) and leaf P (P=0.004) suggest that the Morgan's reagent for available P determination solubilizes mainly thermodynamically less stable Ca-P compounds, which seem to fuel P plant uptake. Since foliar and sediment N:P ratios were influenced mainly by pH, shifts in pH likely cause limitation transitions. Overall, sediment pH rather than Eh was found to control the nutrient status.

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Section: Discussionsupporting

confidence: 91%

Mangrove reforestation in Vietnam: the effect of sediment physicochemical properties on nutrient cycling

Oxmann

Pham²,

Schwendenmann

et al. 2009

Plant Soil

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“…Surprisingly, the slopes of the regression lines between PSI and Mehlich 3 Al were not statistically different in the five different solution treatments (P , 0.05). It is not uncommon for metal oxides to play a strong role in P sorption in noncalcareous soils (Berkheiser et al 1980;Hsu 1964; Van der Zee and Van Riemsdijk 1986), though unlike our study most of these correlations have been observed with oxalate-extractable Al instead of Mehlich 3-extractable Al (Beauchemin et al 2003;Borggaard et al 1990;Borling, Otabbong, and Barberis 2001;Burkitt et al 2006;Kleinman and Sharpley 2002;Pierzynski et al 1990;Traina et al 1986). …”

Section: Phosphorus Sorption From Manurecontrasting

confidence: 72%

“…With pH values ranging from 8.0 to 8.3 for the swine effluent and Ca concentrations in excess of 50 mg L 21 , the precipitation of Ca phosphates may be one reason for the elevated DRP sorption observed for this solution. The greater PSI values observed for the CaCl 2 solution as compared to the KCl solution suggest that precipitation of Ca phosphates was also occurring in the CaCl 2 solution even though the pH in this solution only exceeded 6 in three of the soils, although Ca phosphates have been observed to form in soils with pH values less than 6 (Beauchemin et al 2003). The largest percentage difference in PSI values between the CaCl 2 and KCl solutions did in fact occur in the Lakin soil, which had the highest pH (6.5) value measured for the CaCl 2 solution.…”

Section: Phosphorus Sorption From Manurementioning

confidence: 89%

Sorption of Phosphorus from Swine, Dairy, and Poultry Manures

Bolster

Sistani

2009

Communications in Soil Science and Plant Analysis

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In most phosphorus (P) sorption studies, P is added as an inorganic salt to a predefined background solution such as calcium chloride (CaCl 2 ) or potassium chloride (KCl); however, in many regions, the application of P to agricultural fields is in the form of animal manure. The purpose of this study, therefore, was to compare the sorption behavior of dissolved reactive P (DRP) in monopotassium phosphate (KH 2 PO 4 )-amended CaCl 2 and KCl solutions with sorption behavior of DRP in three different animal manure extracts. Phosphorus single-point isotherms (PSI) were conducted on eight soils with the following solutions: KH 2 PO 4 -amended 0.01 M CaCl 2 solution, KH 2 PO 4 -amended 0.03 M KCl solution, water-extracted dairy manure, water-extracted poultry litter, and swine lagoon effluent. The PSI values for the dairy manure extract were significantly lower than the CaCl 2 solution for all eight soils and lower than the KCl solution for six soils. The PSI values were significantly higher, on the other hand, for poultry litter extract and swine effluent than the inorganic solutions in four and five of the soils, respectively. Our observations that the sorption of DRP in manure solutions differs significantly from that of KH 2 PO 4 -amended CaCl 2 and KCl solutions indicates that manure application rates based on sorption data collected from inorganic P salt experiments may be inaccurate.

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“…Results summarized in Table 3 are based on wide-range fits between -5 eV and 30 eV (relative energy) in first derivative space, implementing the described constraints. For these results, the sums of weighting factors on standards derived from the fitting result were subsequently normalized to 1 (14).…”

Section: Phosphorus Phases In Filter Samples As Shown By Xanesmentioning

confidence: 99%

XANES Speciation of P in Environmental Samples: An Assessment of Filter Media for on-Site Wastewater Treatment

Eveborn

Gustafsson

Hesterberg

et al. 2009

Environ. Sci. Technol.

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X-ray absorption near edge structure (XANES) is a useful technique for characterisation of chemical species of phosphorus in complex environmental samples. To develop and evaluate 1 bed filters as sustainable on-site wastewater treatment solutions, our objective in this study was to determine the chemical forms of accumulated phosphorus in a selection of promising filter materials: Filtralite P, Filtra P, Polonite, Absol, blast furnace slag, and wollastonite.Full-scale operational wastewater-treatment systems were sampled and in addition, filter samples collected from laboratory studies provided access to additional media and complementary samples. Phosphorus species were characterized using phosphorus K-edge XANES spectroscopy, complemented by X-ray powder diffraction (XRPD) and attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR). No systematic differences could be seen in the results between laboratory-and full-scale samples. All six filter media contained significant amounts of crystalline calcium phosphates. Some samples also contained amorphous calcium phosphate (>60% of total P in Absol). In Filtralite P and blast furnace slag, more than 35% of the accumulated phosphorus was associated with Fe or Al. Both the power and shortcomings of XANES analysis for characterizing P species in these filter media are discussed.

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Speciation of Phosphorus in Phosphorus‐Enriched Agricultural Soils Using X‐Ray Absorption Near‐Edge Structure Spectroscopy and Chemical Fractionation

Cited by 295 publications

References 46 publications

Mangrove reforestation in Vietnam: the effect of sediment physicochemical properties on nutrient cycling

Mangrove reforestation in Vietnam: the effect of sediment physicochemical properties on nutrient cycling

Sorption of Phosphorus from Swine, Dairy, and Poultry Manures

XANES Speciation of P in Environmental Samples: An Assessment of Filter Media for on-Site Wastewater Treatment

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