Molecular Speciation of Phosphorus Present in Readily Dispersible Colloids from Agricultural Soils

Liu, Jin; Yang, Jianjun; Liang, Xinqiang; Zhao, Yue; Cade-Menun, Barbara J.; Hu, Yongfeng

doi:10.2136/sssaj2013.05.0159

Cited by 74 publications

(64 citation statements)

References 44 publications

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“…Recent literature has pointed out the potential for the hydrolysis of diester compounds to monoester compounds during common extraction and measurement procedures (Turner et al, 2005;Bü nemann et al, 2008;Doolette et al, 2009;He et al, 2011;Liu et al, 2013;Vincent et al, 2013;Young et al, 2013;Cade-Menun and Liu, 2014;Liu et al, 2014). The two monoesters α-glycerophosphate and β-glycerophosphate were specifically described as hydrolysis products of phospholipids (Doolette et al, 2009).…”

Section: Soils and Test Sitesmentioning

confidence: 99%

“…In the majority of P o compounds, P occurs as phosphate monoesters, phosphate diesters, and phosphonates (Cade-Menun, 2005;Turner et al, 2007;Vestergren et al, 2013). For soil and stream water samples it has been shown, using liquid-state 31 P-nuclear magnetic resonance spectroscopy ( 31 P-NMR), that orthophosphate and phosphate monoesters are the dominant P forms, with inositolhexakisphosphate as the most common P o (Turner et al, 2005;Cade-Menun et al, 2006;Liu et al, 2014). Yet, all phosphate ions, polyphosphates, and P o compounds sorb to soil components to a different extent, in acidic soils (like our forest soil; pH 2.8-3.2) sorption is predominantly to Al-and Fe-(hydr)oxides (Hens and Merckx, 2001;Ilg et al, 2005;Kruse et al, 2015;Jiang et al, 2015a, b).…”

Section: Introductionmentioning

confidence: 99%

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Phosphorus forms in forest soil colloids as revealed by liquid‐state ³¹P‐NMR

Missong¹,

Bol²,

Willbold

et al. 2016

J. Plant Nutr. Soil Sci.

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Nanoparticles and colloids affect the storage and hence the availability of P in forest ecosystems. We investigated the fine colloids present in forest soils and their association with inorganic and organic P. To differentiate between the different P forms, we performed liquid-state 31 P-nucelar magnetic resonance ( 31 P-NMR) measurements on forest bulk soil extracts, on colloid extracts and on the electrolyte phase of their soil suspensions. The 31 P-NMR spectra indicated that soil nanoparticles and colloids were more enriched with organic than with inorganic P forms compared to the electrolyte phase. The P concentration was enriched in the colloidal fraction in comparison to the bulk soil and the phosphate diesters were more dominant in the colloidal fraction when compared to the bulk soil. The colloidal P-diester to P-monoester ratios were 2 to 3 times higher in the colloidal fraction than in the bulk soil. In contrast, relatively large percentages of inorganic P were found in the electrolyte phase.Supplementary (not shown) Data are available at the JuSER Server (juser.fz-juelich.de, reference number: FZJ-2016-01739) https://juser.fz-juelich.de/record/283057.

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Section: Soils and Test Sitesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Phosphorus forms in forest soil colloids as revealed by liquid‐state ³¹P‐NMR

Missong¹,

Bol²,

Willbold

et al. 2016

J. Plant Nutr. Soil Sci.

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“…Few studies have distinguished organic and inorganic P associated with different Fe/Al oxides (i.e., amorphous and crystalline Fe/Al oxides) (Mahieu et al, 2000), despite the fact that P speciation will ultimately determine the different P bioavailability, mobility and mineralization in soil (Dick and Tabatabai, 1978;Liu et al, 2014). The study by Mahieu et al (2000) found that amorphous Fe oxides had strong correlations with some organic P forms in the humic acid and calcium humate extracts of lowland rice soils.…”

Section: Jiang Et Al: Speciation and Distribution Of P Associatedmentioning

confidence: 99%

Speciation and distribution of P associated with Fe and Al oxides in aggregate-sized fraction of an arable soil

Jiang¹,

Bol²,

Willbold³

et al. 2015

Biogeosciences

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Abstract. To maximize crop productivity fertilizer P is generally applied to arable soils, a significant proportion of which becomes stabilized by mineral components and in part subsequently becomes unavailable to plants. However, little is known about the relative contributions of the different organic and inorganic P bound to Fe/Al oxides in the smaller soil particles. Alkaline (NaOH-Na 2 EDTA) extraction with solution 31 P-nuclear magnetic resonance ( 31 P-NMR) spectroscopy is considered a reliable method for extracting and quantifying organic P and (some) inorganic P. However, any so-called residual P after the alkaline extraction has remained unidentified. Therefore, in the present study, the amorphous (a) and crystalline (c) Fe/Al oxide minerals and related P in soil aggregate-sized fractions (> 20, 2-20, 0.45-2 and < 0.45 µm) were specifically extracted by oxalate (a-Fe/Al oxides) and dithionite-citrate-bicarbonate (DCB, both a-and c-Fe/Al oxides). These soil aggregate-sized fractions with and without the oxalate and DCB pre-treatments were then sequentially extracted by alkaline extraction prior to solution 31 P-NMR spectroscopy. This was done to quantify the P associated with a-and c-Fe/Al oxides in both alkaline extraction and the residual P of different soil aggregate-sized fractions.The results showed that overall P contents increased with decreasing size of the soil aggregate-sized fractions. However, the relative distribution and speciation of varying P forms were found to be independent of soil aggregate-size. The majority of alkaline-extractable P was in the a-Fe/Al oxide fraction (42-47 % of total P), most of which was orthophosphate (36-41 % of total P). Furthermore, still significant amounts of particularly monoester P were bound to these oxides. Intriguingly, however, Fe/Al oxides were not the main bonding sites for pyrophosphate. Residual P contained similar amounts of total P associated with both a-(11-15 % of total P) and c-Fe oxides (7-13 % of total P) in various aggregate-sized fractions, suggesting that it was likely occluded within the a-and c-Fe oxides in soil. This implies that, with the dissolution of Fe oxides, this P may be released and thus available for plants and microbial communities.

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“…Microbial activities are the realization of this genetic potential and have often been measured as enzyme activities. Baldrian (2014) focuses on how these enzyme activities vary in soils, with an emphasis on variation across spatial scales.Soil P was the focus of three papers (Cade-Menum and Liu, 2014; Tamburnini et al, 2014;Liu et al, 2014). Cade-Menun and Liu (2014) review recent advances in the use of 31 P-NMR.…”

mentioning

confidence: 99%

“…Tamburini et al (2014) review the application of 18 O for understanding P transformations in soil and its effectiveness in providing information on biological processes influencing the P cycle and for tracing the origin and fate of P in soil-plant systems. These approaches are yielding new insights into the forms and cycling of P in soils, as illustrated by the final paper by Liu et al (2014), which explores molecular speciation of P associated with soil colloids.The applications of different operating modes of FTIR spectroscopy to study N cycling were highlighted in two papers. Kira et al (2014) found that FTIR-ATR (attenuated total reflectance) can be used with minimal disturbance to determine the 15 N abundance of inorganic N in soil pastes, which may pave the way to real-…”

mentioning

confidence: 99%

A Collection of Papers from “Advanced Methods for Investigating Nutrient Dynamics in Soils and Ecosystems”

Myrold¹,

Shaviv²

2014

Soil Science Society of America Journal

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at the Technion in Haifa, Israel, with the generous support of the Dahlia Greidinger fund and BARD (Binational US-Israeli fund for Agricultural R&D). Approximately 100 scientists from around the world gathered to address knowledge gaps and priorities for research and development related to the need to quantify nutrient dynamics and reaction mechanisms, particularly those of nitrogen (N) and phosphorus (P) in crop/food production systems. There was a focus on advanced and novel tools and approaches (including those developed in other disciplines) that enable real time/online investigation and quantification of processes and on options to observe and model changes at various scales (from microscopic up to field scales). Sessions were devoted to new approaches for understanding N and P cycling in soils, organic matter and interactions between carbon (C) and N, and advances in measurement methods at multiple scales. Manuscript based on symposium presentations were solicited, of which seven are published in this issue of the Soil Science Society of America Journal. The full proceedings of the symposium are available at: http://dgsymp13.technion.ac.il/.Two papers emphasize recent developments in measuring microbial taxonomic and functional diversity. Rapid advances in DNA sequencing technology now makes it possible to sequence entire communities of microorganisms, or at least their collective genes. Myrold et al. (2014) review the status of the application of metagenomics, and related approaches, to determine the genetic potential of soil microbial communities. Microbial activities are the realization of this genetic potential and have often been measured as enzyme activities. Baldrian (2014) focuses on how these enzyme activities vary in soils, with an emphasis on variation across spatial scales.Soil P was the focus of three papers (Cade-Menum and Liu, 2014; Tamburnini et al., 2014;Liu et al., 2014). Cade-Menun and Liu (2014) review recent advances in the use of 31 P-NMR. Tamburini et al. (2014) review the application of 18 O for understanding P transformations in soil and its effectiveness in providing information on biological processes influencing the P cycle and for tracing the origin and fate of P in soil-plant systems. These approaches are yielding new insights into the forms and cycling of P in soils, as illustrated by the final paper by Liu et al. (2014), which explores molecular speciation of P associated with soil colloids.The applications of different operating modes of FTIR spectroscopy to study N cycling were highlighted in two papers. Kira et al. (2014) found that FTIR-ATR (attenuated total reflectance) can be used with minimal disturbance to determine the 15 N abundance of inorganic N in soil pastes, which may pave the way to real-

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Molecular Speciation of Phosphorus Present in Readily Dispersible Colloids from Agricultural Soils

Cited by 74 publications

References 44 publications

Phosphorus forms in forest soil colloids as revealed by liquid‐state ³¹P‐NMR

Phosphorus forms in forest soil colloids as revealed by liquid‐state ³¹P‐NMR

Speciation and distribution of P associated with Fe and Al oxides in aggregate-sized fraction of an arable soil

A Collection of Papers from “Advanced Methods for Investigating Nutrient Dynamics in Soils and Ecosystems”

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Molecular Speciation of Phosphorus Present in Readily Dispersible Colloids from Agricultural Soils

Cited by 74 publications

References 44 publications

Phosphorus forms in forest soil colloids as revealed by liquid‐state 31P‐NMR

Phosphorus forms in forest soil colloids as revealed by liquid‐state 31P‐NMR

Speciation and distribution of P associated with Fe and Al oxides in aggregate-sized fraction of an arable soil

A Collection of Papers from “Advanced Methods for Investigating Nutrient Dynamics in Soils and Ecosystems”

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Phosphorus forms in forest soil colloids as revealed by liquid‐state ³¹P‐NMR

Phosphorus forms in forest soil colloids as revealed by liquid‐state ³¹P‐NMR