Mineralization of Phosphorus in Sludge‐Amended Soils Monitored by Phosphorus‐31‐Nuclear Magnetic Resonance Spectroscopy

Hinedi, Zeina R.; Chang, Andrew C.; Lee, R. W. K.

doi:10.2136/sssaj1988.03615995005200060014x

Cited by 64 publications

(33 citation statements)

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“…Proportions of diester-P and phosphonate-P in organic P forms increased along the decreasing P gradient (Table 6). It has been assumed that diester-P is more readily available to microbial breakdown than monoester-P (Hinedi et al 1988, Guggenberger et al 1996. Large proportions of diester-P have also been observed in acid soils of other studies.…”

Section: Organic Pmentioning

confidence: 93%

Soil phosphorus supply controls P nutrition strategies of beech forest ecosystems in Central Europe

et al. 2017

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Phosphorus availability may shape plantmicroorganism-soil interactions in forest ecosystems. Our aim was to quantify the interactions between soil P availability and P nutrition strategies of European beech (Fagus sylvatica) forests. We assumed that plants and microorganisms of P-rich forests carry over mineral-bound P into the biogeochemical P cycle (acquiring strategy). In contrast, P-poor ecosystems establish tight P cycles to sustain their P demand (recycling strategy). We tested if this conceptual model on supply-controlled P nutrition strategies was consistent with data from five European beech forest ecosystems with different parent materials (geosequence), covering a wide range of total soil P stocks (160-900 g P m -2 ; \1 m depth). We analyzed numerous soil chemical and biological properties. Especially P-rich beech ecosystems accumulated P in topsoil horizons in moderately labile forms. Forest floor turnover rates decreased with decreasing total P stocks (from 1/5 to 1/40 per year) while ratios between organic carbon and organic phosphorus (C:P org ) increased from 110 to 984 (A horizons). High proportions of fine-root biomass in forest floors seemed to favor tight P recycling. Phosphorus in fine-root biomass increased relative to microbial P with decreasing P stocks. Concomitantly, phosphodiesterase activity decreased, which might explain increasing proportions of diester-P remaining in the soil organic matter. With decreasing P supply indicator values for P acquisition decreased and those for recycling increased, implying adjustment of plantmicroorganism-soil feedbacks to soil P availability. Intense recycling improves the P use efficiency of beech forests.

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Section: Organic Pmentioning

confidence: 93%

Soil phosphorus supply controls P nutrition strategies of beech forest ecosystems in Central Europe

et al. 2017

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“…Hinedi et al (1988) showed that the monoesters are stable while the diesters are relatively rapidly converted to inorganic forms. The protection of organic matter in clayey soils, mainly by adsorption onto clay minerals, is often discussed.…”

Section: P-nmr Analysis Of Alkali Extractsmentioning

confidence: 99%

Assessing organic phosphorus status of Cerrado oxisols (Brazil) using ³¹P-NMR spectroscopy and phosphomonoesterase activity measurement

Chapuis‐Lardy¹,

Brossard²,

Quiquampoix³

2001

Can. J. Soil. Sci.

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Chapuis-Lardy, L., Brossard, M. and Quiquampoix, H. 2001. Assessing organic phosphorus status of Cerrado oxisols (Brazil) using 31 P-NMR spectroscopy and phosphomonoesterase activity measurement. Can. J. Soil Sci. 81: 591-601. Plant production in the Brazilian savannas, also known as the Cerrados, is limited mainly by low P availability in soils. Little is known about the P status in the Cerrados region, despite its increasing significance for the country's agriculture.31 P-NMR spectroscopy of alkali extracts and phosphomonoesterase (PME) activity measurements were used to study forms of P and their stability in oxisols of natural and pasture systems. Total P content (Pt) in topsoils ranged from 301 to 456 mg kg -1 and organic P content (Po) from 84 to 194 mg kg -1 with the highest values under natural vegetation. The estimation of forms of soil P with different lability (provided by NaHCO 3 and NaOH extractions) showed little difference between natural vegetation and pastures, but the proportions of Po extracted suggest the importance of organically bound P as a source of plant-available P. All NMR spectra showed signals of organic P (monoesters and diesters) and inorganic P forms (orthophosphate and pyrophosphate), with little influence of land use. Organic P appears to be mainly in the form of stable phosphomonoesters. The most marked effect of land use was a decrease in PME activity under recent pastures, indicating an increase of PME stability in topsoils after the maize-grass ley plantation. The importance of the pH of the PME activity measurement is also discussed.Key words: Organic P, labile P, 31 P-NMR, phosphosmonoesterase, Cerrado, Oxisols.Chapuis-Lardy, L., Brossard, M. et Quiquampoix, H. 2001. Détermination du statut du phosphore organique d'oxisols de la région des Cerrados (Brésil) par RMN du 31 P et mesures d'activité phosphomonoestérase. Can. J. Soil Sci. 81: 591-601. La production des savanes brésiliennes connues sous le nom de Cerrados est principalement limitée par une faible disponibilité du phosphore présent dans les sols. Malgré l'importance croissante de cette région pour l'agriculture brésilienne, le statut du phosphore reste peu étudié. Cette étude a été réalisée sur des échantillons d'oxisols prélevés sous végétation naturelle de savanes et sous pâturages. Les formes du phosphore et leur stabilité ont été étudiées par résonance magnétique nucléaire (RMN du 31 P) et mesures de l'activité phosphomonoestérasique (PME). Le contenu en phosphore des horizons superficiels s'échelonne respectivement de 301 à 456 mg kg -1 sol pour le phosphore total (Pt) et de 84 à 194 mg kg -1 pour le phosphore organique (Po) ; les valeurs les plus élevées étant observées sous végétation naturelle. La quantification des formes de phosphore plus ou moins assimilables présentes dans les sols (extraites par NaHCO 3 et NaOH) montre peu de différences entre la végétation naturelle et les pâturages ; Les quantités obtenues suggèrent cependant l'importance des formes organiques comme source de phosphore assimilable p...

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“…The main focus of most of these soil studies has been to characterize structural differences in P under varying conditions of temperature and soil moisture (Ogner, 1983;Hawkes et al, 1984;Condron et al, 1985;Adams & Byrne, 1989;Condron et al, 1990;Bedrock et al, 1994;Bishop et al, 1994;Bedrock et al, 1995). In a more limited number of studies, the speciation of P was examined in more nutrient-rich compost and sewage sludge (Preston et al, 1986;Hinedi et al, 1988;Hinedi et al, 1989), bacteria (Doi et al, 1989) and algae (Sianoudis et ai., 1986;Feuillade et al, 1995). Degradation of monoesters and diesters in soils has also been monitored by examining changes in 31p_NMR spectra upon exposure to specific enzymes (Bishop et al, 1994) or addition of sewage sludge to soils (Hinedi et ai., 1988).…”

Section: Previous Studiesmentioning

confidence: 99%

“…It has been previously suggested (Hinedi et al, 1988) that monoesters are more recalcitrant to degradation than other organic P compounds. Potentially, a mechanism for this preferential preservation lies in the association of organic P compounds with inorganic surfaces (discussed in Section 4.5.6) and large organic molecules.…”

Section: Mechanisms For Incorporation Of Monoester and Diester P Intomentioning

confidence: 99%

Organic phosphorus in marine sediments : chemical structure, diagenetic alteration, and mechanisms of preservation

Laarkamp¹

2000

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Phosphorus, an essential nutrient, is removed from the oceans only through burial with marine sediments. Organic phosphorus (Po,g) constitutes an important fraction (ca. 25%) oftotal-P in marine sediments. However, given the inherent lability of primary Po,g biochemicals, it is a puzzle that any Pm, is preserved in marine sediments. The goal of this thesis was to address this apparent paradox by linking bulk and molecular-level Po" information.A newly-developed sequential extraction method, which isolates sedimentary Po" reservoirs based on solubility, was used in concert with 3lp nuclear magnetic resonance spectroscopy (31p_NMR) to quantify Po,g functional group concentrations. The coupled extraction/ 31 P-NMR method was applied to three sediment cores from the Santa Barbara Basin, and the first-ever high-resolution depth profiles of molecular-level Po,g distribution during diagenesis were generated.These depth profiles were used to consider regulation of Pm, distribution by biomass abundance, chemical structure, and physical protection mechanisms. Biomass cannot account for more than a few percent of sedimentary Po,g. No evidence for direct structural control on remineralization of Po,g was found. Instead, sorptive protection appears to be an important mechanism for Po,g preservation, and structure may act as a secondary control due to preferential sorption of specific Pm, compound classes.

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Mineralization of Phosphorus in Sludge‐Amended Soils Monitored by Phosphorus‐31‐Nuclear Magnetic Resonance Spectroscopy

Cited by 64 publications

References 0 publications

Soil phosphorus supply controls P nutrition strategies of beech forest ecosystems in Central Europe

Soil phosphorus supply controls P nutrition strategies of beech forest ecosystems in Central Europe

Assessing organic phosphorus status of Cerrado oxisols (Brazil) using ³¹P-NMR spectroscopy and phosphomonoesterase activity measurement

Organic phosphorus in marine sediments : chemical structure, diagenetic alteration, and mechanisms of preservation

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Mineralization of Phosphorus in Sludge‐Amended Soils Monitored by Phosphorus‐31‐Nuclear Magnetic Resonance Spectroscopy

Cited by 64 publications

References 0 publications

Soil phosphorus supply controls P nutrition strategies of beech forest ecosystems in Central Europe

Soil phosphorus supply controls P nutrition strategies of beech forest ecosystems in Central Europe

Assessing organic phosphorus status of Cerrado oxisols (Brazil) using 31P-NMR spectroscopy and phosphomonoesterase activity measurement

Organic phosphorus in marine sediments : chemical structure, diagenetic alteration, and mechanisms of preservation

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Assessing organic phosphorus status of Cerrado oxisols (Brazil) using ³¹P-NMR spectroscopy and phosphomonoesterase activity measurement