Phosphorus sorption and desorption indices in soil

Simard, R. R.; Cluis, Daniel; Gangbazo, G.; Pesant, A. R.

doi:10.1080/00103629409369129

Cited by 32 publications

(25 citation statements)

References 19 publications

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“…1 A and B show that the best least square fit of Al ox + Fe ox to X m + Pi ox can give very low, non-significant coefficients of determination when the number of soils considered is small and their genesis non-homogeneous. Simard et al (1994) achieved better predictions of X m when considering, in addition to Al ox , soil properties such as organic matter, sand and M3P contents on this particular set of soils. Provin (1996) Agricultural fields with long histories of animal P ox /(Al ox + Fe ox ) varied from 3 to 20% 3 to 21 manure applications, Indiana (USA) Beauchemin (1996) Intensively cropped area from Québec (Canada) P ox /(Al ox + Fe ox ) ranged from 5 to 35% 8 to 46 where mineral fertilizers were the main source of P Rivest and Leduc (1997) Ap A larger dataset composed of data from three different studies on Québec soils (Laverdière and Karam 1984;Simard et al 1991) was used to estimate the relationships between X m and Al ox + Fe ox for different groups of soils.…”

Section: Suitability Of P Saturation Indices For P Management In Québmentioning

confidence: 99%

“…*,*** Significant at α = 0.05 and 0.001, respectively. 0.84*** z Psi, P sorption index from Bache and Williams (1971; X=mg kg -1 and C= mg L -1 ); Psi was shown to be highly correlated to the maximum adsorption derived from Langmuir isotherm (X m ; Simard et al 1994). Fe ox and Al ox , ammonium-oxalate extractable Fe and Al (mmol kg -1 ); AlM3, Mehlich-III extractable Al (mg kg -1 ).…”

Section: M3p/x M M3p/alm3mentioning

confidence: 99%

“…1) were made with data from Simard et al (1994) to assess this relationship on a range of soils collected from the Beaurivage watershed in Québec. In the 15 studied soils, three pedogenic soil groups with clay contents <10% were represented: Podzols, Gleysols and Brunisols ; t = 48 h and c = 4 mM).…”

Section: Suitability Of P Saturation Indices For P Management In Québmentioning

confidence: 99%

“…For example, the P sorption index (Mozaffari and Sims 1994;Simard et al 1994) and an indicator of soil P sorption capacity derived from a 32 P isotopic method (Frossard et al 1993) …”

Section: Mots Clés: Phosphore Saturation Gestionmentioning

confidence: 99%

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Soil phosphorus saturation degree: Review of some indices and their suitability for P management in Québec, Canada

Beauchemin¹,

Simard²

1999

Can. J. Soil. Sci.

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147

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Beauchemin, S. and Simard, R. R. 1999. Soil phosphorus saturation degree: Review of some indices and their suitability for P management in Québec, Canada. Can. J. Soil Sci. 79: 615-625. Many agricultural fields contain excessive labile soil P in regard to crop needs. Its environmental fate must be assessed. The concept of P saturation degree is meaningful as it describes the portion of the soil binding sites already covered with P, and indicates the potential desorbability of soil P. The first objective of this study was to review different indices that have been proposed to estimate the degree of soil P saturation and the relationships between soil P saturation degree and P solubility. The second objective is to discuss their suitability as environmental indicators for P management in the province of Québec, Canada. In the Netherlands, the P saturation index is defined as the ratio of P to Al + Fe contents extracted by ammonium oxalate [P ox /(Al ox + Fe ox ) or (P ox /0.5(Al ox + Fe ox )]. This approach has been mainly used with non-calcareous soils. In Québec, the ratio of Mehlich-III extractable P to Al (M3P/AlM3) is proposed as an alternative, which relies on routine laboratory test. However, the suitability of the M3P/AlM3 ratio has yet to be determined for some specific soil groups (e.g. gleyed soils, soils with Al ox content >6 g kg -1 ) and for subsoil horizons. Regardless of the chosen index, it is suggested that the best way to manage the risk of water contamination by P in Québec (namely, defining critical levels of soil P saturation) may be to form homogeneous soil groups to account for their distinctive behaviour and characteristics.Key words: Phosphorus, saturation, management Beauchemin, S. et Simard, R. R. 1999. Degré de saturation en P du sol: revue de quelques indices et de leur utilité pour la gestion du P au Québec, Canada. Can. J. Soil Sci. 79: 615-625. Plusieurs sols agricoles présentent des teneurs excessives en P labile comparées aux besoins des cultures. Le devenir environnemental de ce P doit être évalué. La notion de degré de saturation en P d'un sol est particulièrement intéressante parce qu'elle donne une mesure de la proportion des sites de sorption déjà occupés par le P tout en indiquant le potentiel de désorption du P. Le premier objectif de cette étude est de revoir différents indices qui ont été proposés pour estimer le degré de saturation en P du sol et la fiabilité de ces indices à prédire la solubilité du P dans différents types de sol. Le deuxième objectif est de faire ressortir certains aspects à considérer pour favoriser pleinement leur utilisation comme indicateurs environnementaux dans la gestion du P pour la province de Québec, Canada. En Hollande, l'index de saturation en P est défini par le rapport entre le contenu en P et celui en Fe et Al extraits par l'oxalate d'ammonium [P ox /(Al ox + Fe ox ) ou (P ox /0.5(Al ox + Fe ox )]. Ces indices ont été étudiés principalement sur des sols non calcaires. Au Québec, le rapport entre le contenu en P et celui en Al extrait au...

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Section: Suitability Of P Saturation Indices For P Management In Québmentioning

confidence: 99%

Section: M3p/x M M3p/alm3mentioning

confidence: 99%

Section: Suitability Of P Saturation Indices For P Management In Québmentioning

confidence: 99%

“…For example, the P sorption index (Mozaffari and Sims 1994;Simard et al 1994) and an indicator of soil P sorption capacity derived from a 32 P isotopic method (Frossard et al 1993) …”

Section: Mots Clés: Phosphore Saturation Gestionmentioning

confidence: 99%

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Soil phosphorus saturation degree: Review of some indices and their suitability for P management in Québec, Canada

Beauchemin¹,

Simard²

1999

Can. J. Soil. Sci.

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147

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“…Several studies showed that soil texture, soil pH, soil genesis as related to mineralogy, Fe and Al oxyhydroxides, soil organic matter accumulation, as well as depth of water table could influence soil P sorption capacity, and quality of runoff and drainage water (Juo and Ellis 1968;Laverdière and Karam 1984;Giroux and Tran 1985;Breeuwsma and Silva 1992;Breeuwsma and Reijerink 1993;Simard et al 1994Simard et al , 2000Sharpley 1995;Sims et al 1998;Djodjic et al 1999;Cox and Hendricks 2000;Leclerc et al 2001). A useful environmental soil test P (STP) for assessing P accumulation should extract all or a representative amount of the P fraction in soils that is susceptible to surface runoff, leaching, or dissolution from eroded sediments, and be rapid, accurate, inexpensive and reliable (Moore et al 1998).…”

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confidence: 99%

Environmental Mehlich-III soil phosphorus saturation indices for Quebec acid to near neutral mineral soils varying in texture and genesis

Pellerin¹,

Parent

Fortin³

et al. 2006

Can. J. Soil. Sci.

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(Mehlich 1984) is a multinutrient agri-environmental routine soil-testing procedure used in many jurisdictions in North America, but one that is affected by soil texture. The P W determined by the Sissingh (1971) method is an index of surface water contamination and desorbed P that is not influenced by soil texture and that can be used to define specific M-III critical environmental indices by soil texture group. Our objective was to define critical environmental indices by relating (P/Al) M-III to P W . We analyzed 275 soil samples from surface, and 175 from subsurface layers, varying in genesis, texture, and pH. The relationship between P W and (P/Al) M-III was influenced by soil properties, particularly soil texture and genesis. Fine-textured (> 300 g clay kg -1 ) and gleyed soils tended to release more P W at a given (P/Al) M-III compared with coarse-textured (≤ 300 g clay kg -1 ) and podzolized soils. Using a critical value of 9.7 mg P W L -1 derived from the literature, critical environmental (P/Al) M-III ratios were found to be 0.131 for coarse-, and 0.076 for fine-textured soils. Subsurface P W increased significantly with (P/Al) M-III above 0.131 in the plough layer of coarse-textured soils, but was independent of (P/Al) M-III in fine-textured soils, indicating contrasting mechanisms of P accumulation in subsurface layers (matrix vs. preferential flow). After accounting for soil texture, (P/Al) M-III appeared to be a useful index of P accumulation in Quebec mineral soils. est largement utilisée en Amérique du Nord, mais est sensible à la texture du sol. Le P W (Sissingh 1971), un indice de la désorption du P et de contamination des eaux de surface, n'est pas affecté par la texture et permettrait donc de définir des valeurs critiques environnementales M-III spécifiques à la texture. Notre objectif était de définir ces valeurs critiques (P/Al) M-III en lien avec le P W . Nous avons analysé 275 échantillons de sol de surface et 175 dans la couche sous-jacente. La relation P W -(P/Al) M-III dépendait des propriétés du sol comme la texture et la genèse. Pour un même rapport (P/Al) M-III , les sols de texture fine (> 300 g d'argile kg -1 ) et gléifiés tendaient à libérer plus de P W que les sols à texture grossière (≤ 300 g d'argile kg -1 ) et podzolisés. Utilisant une valeur critique de 9,7 mg P W L -1 tirée de la littérature, les rapports (P/Al) M-III critiques étaient de 0,131 pour les sols de texture grossière et 0,076 pour ceux de texture fine. La valeur P W dans les couches sous-jacentes augmentait significativement dans les sols de surface de texture grossière avec (P/Al) M-III > 0,131, mais était indépendante de (P/Al) M-III dans les sols de texture fine, 7113 This paper is part of a Ph.D. thesis. 4 To whom correspondence should be addressed (e-mail: leon-etienne.parent@sga.ulaval.ca).Abbreviations: ␣ m , maximum saturation factor for total sorption; ␤ m , maximum saturation factor for reversible adsorption; b, Langmuir phosphorus adsorption maximum; DPS, degree of phosphate saturation; ICP, induct...

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Evaluating the effectiveness of the phosphorus sorption index for estimating maximum phosphorus sorption capacity

Bolster

McGrath

Rosso

et al. 2020

Soil Science Soc of Amer J

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The single‐point P sorption index (PSI), which is defined as the ratio of sorbed P (S) to the log P concentration in soil solution following a single P addition, is often used to estimate maximum soil P sorption capacity (Smax). Although studies have found good correlations between PSI and Smax as determined from fitting the Langmuir model to complete sorption isotherm data, a thorough analysis of the role of added P concentration on this relationship is needed. Our first objective was to investigate the effect of added P concentration on the correlation between PSI and Smax as determined by the Langmuir equation. Our second objective was to determine if S was better than PSI for predicting Smax. Using numerical simulations, we tested the correlation between Smax and PSI for added P concentrations of 75, 100, 150, and 200 mg P L−1. Results of the simulations show that the strength of the correlation between Smax and PSI increases with increasing P concentration. Our results also show that PSI was a better predictor of Smax than S for added concentrations of 75 and 100 mg P L−1, whereas at the higher rates S was a slightly better predictor of Smax and gave a direct estimate of Smax rather than the relative estimate obtained from PSI. Results from P sorption data measured on soils from Maryland and Sweden were consistent with our results from the numerical simulations. Our findings highlight important limitations of using PSI for estimating Smax.

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Phosphorus sorption and desorption indices in soil

Cited by 32 publications

References 19 publications

Soil phosphorus saturation degree: Review of some indices and their suitability for P management in Québec, Canada

Soil phosphorus saturation degree: Review of some indices and their suitability for P management in Québec, Canada

Environmental Mehlich-III soil phosphorus saturation indices for Quebec acid to near neutral mineral soils varying in texture and genesis

Evaluating the effectiveness of the phosphorus sorption index for estimating maximum phosphorus sorption capacity

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