Competitive interaction between soil-derived humic acid and phosphate on goethite

Fu, Zhiyong; Wu, Fengchang; Song, Kwonsik; Lin, Ying; Bai, Yingchen; Zhu, Yuanrong; Giesy, John P.

doi:10.1016/j.apgeochem.2013.05.015

Cited by 79 publications

(35 citation statements)

References 30 publications

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“…On the other hand, with highest P dose (107.4 µg P g -1 ) the added amount was six times lower than this capacity. Since the sites of higher binding energy of P to the adsorbents decrease as P saturation increases (Borggaard et al, 2005;Guppy et al, 2005;Cessa et al, 2010;Fu et al, 2013), this may have influenced the effects of HAs observed in the treatments with highest P dose.…”

Section: Resultsmentioning

confidence: 99%

“…Among the mechanisms of action of HAs, some of them reduce P reaction with oxides, such as the blocking of adsorption sites (Kleber et al, 2015) and pores of the adsorbent (Kaiser & Guggenberger, 2003), exchange of binders (Fu et al, 2013) and increase of negative charge density (Antelo et al, 2007). On the other hand, HAs can increase phosphate adsorption (Fu et al, 2013), dissolving Fe oxides and complexing this anion combined with this cation (Gerke, 2010).…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, HAs can increase phosphate adsorption (Fu et al, 2013), dissolving Fe oxides and complexing this anion combined with this cation (Gerke, 2010). These mechanisms vary according to the type of HA and physical-chemical conditions of the medium, such as pH, among other factors (Weng et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

“…The effects of HAs on P content have also been evaluated in simple systems (solutions with Fe, HA and P oxides, without soil) (Antelo et al, 2007;Weng et al, 2012;Fu et al, 2013;Yan et al, 2016). Thus, there are uncertainties in relation to the effect of HAs addition on P availability, considering the conditions of application in soil and recommended doses of P. This study aimed to investigate the effect of HA application, combined with P doses, on the content of this nutrient in Latosol with and without acidity correction.…”

Section: Introductionmentioning

confidence: 99%

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Modifications of phosphorus in Latosol as a function of humic acids and acidity

Beck

Escosteguy

Dick

2018

Rev. bras. eng. agríc. ambient.

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Palavras-chave:fosfato sorção substâncias húmicas A B S T R A C TThe effect of humic acids (HA) on phosphorus (P) availability is still contradictory; thus, it is necessary to identify the conditions that play a crucial role in this effect. The aim of this study was to investigate the effect of HA application, combined with doses of P, on the content of this nutrient in a Latosol with and without acidity correction. Two experiments were carried out, one with HA from peat and another with HA from mineral charcoal (leonardite). Doses of these acids (0; 1.12 and 5.62 mg C g -1 of soil) and P (26.2 and 104.7 mg P g -1 of soil, 1 and 4-fold higher than recommended, respectively) were tested at soil pH 4.5 and 7.0, in a three-factorial design. The soil was incubated for 20 days and the soil-P content was measured by Mehlich-1 and remaining-P tests. The effect of HAs on P availability varied with the P doses and soil acidity. Humic acids application increases P content in Latosol when P dose is higher than recommended and there is no acidity correction (pH 4.5). However, there is no effect of HAs application on soil-P content when applying the recommended amount of this nutrient, irrespective of the pH value.Modificações de fósforo em Latossolo em função de ácidos húmicos e acidez R E S U M O O efeito de ácidos húmicos (AH) na disponibilidade de fósforo (P) ainda é contraditório. Assim, é necessário identificar as principais condições que podem influenciar esse efeito. Com o trabalho, objetivou-se investigar o efeito da aplicação de AH, combinada com doses de P, no teor desse nutriente em Latossolo com e sem correção de acidez. Foram conduzidos dois experimentos, um com AH extraído de turfa e outro com AH extraído de carvão mineral (leonardita). Doses desses ácidos (0; 1,12 e 5,62 mg C g -1 de solo) e de P (26,2 e 104,7 mg P g -1 de solo, 1 e 4 vezes maior que o recomendado, respectivamente) foram testadas, em dois valores de pH do solo (4,5 e 7,0), em esquema trifatorial. O solo foi incubado por 20 dias e os teores de P foram extraídos com os métodos Mehlich-1 e P remanescente. O efeito dos AHs na disponibilidade desse nutriente variou com as doses de P e o pH do solo. A adição desses ácidos aumenta o teor desse nutriente em latossolo somente quando a dose de correção de P for maior que a recomendada e a acidez (pH 4,5) não for corrigida. Por outro lado, os AHs não influenciam o teor desse nutriente quando a dose de correção aplicada corresponder à quantidade recomendada, independentemente do pH do solo.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modifications of phosphorus in Latosol as a function of humic acids and acidity

Beck

Escosteguy

Dick

2018

Rev. bras. eng. agríc. ambient.

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“…Wang et al (2016) reported that oxalic, citric, and malic acids reduce P adsorption through ligand exchange and chelation interactions with iron (Fe) and aluminum (Al) minerals. Higher molecular weight humic substances have also been shown to inhibit P adsorption to soil minerals (Antelo et al, 2007;Fu et al, 2013) Although organic matter can compete with orthophosphate for mineral sorption sites and thus reduce P sorption in laboratory studies, the relevance of this mechanism for increasing P bioavailability in field soils has been questioned. The observed apparent reduction of P adsorption by decomposing organic matter may stem from unaccounted P being supplied directly by the added organic matter (Guppy et al, 2005a,b).…”

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confidence: 99%

Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic Matter

Chase

Erich

Ohno

2018

Agricultural & Env Letters

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Numerous studies have demonstrated that synthetic organic acids can affect phosphorus (P) solubility in soils and uptake by plants. However, few studies have examined the effects of dissolved organic matter (DOM) derived from carbon (C)-rich soil amendments on P bioavailability. This study investigated how DOM extracted from crop residues, animal manures, and compost affected P adsorption onto iron (oxy)hydroxide (FeOOH) and its bioavailability using a plant bioassay. The results showed that pre-adsorbed DOM significantly decreased P adsorption by 19%. However, the pre-adsorbed DOM treatment did not significantly affect P uptake by tomato (Solanum lycopersicum L. 'German Johnson') plants in a 5-wk agar-culture bioassay. The results of these laboratorybased studies suggest that the initial DOM leached from C-rich soil amendments such as crop residues and animal manures is unlikely to affect soil P bioavailability because orthophosphate forms strong inner-sphere bonds to the FeOOH and this DOM fraction does not.School of Food and Agriculture, Univ. of Maine, 5722 Deering Hall, Orono, ME 04469-5722. Core Ideas• Pre-adsorbed organic matter on FeOOH was displaced by orthophosphate.• Bioavailability of P adsorbed onto FeOOH was not affected by organic matter.• Initial DOM leached from organic amendments is unlikely to increase soil P bioavailability.Abbreviations: DOC, dissolved organic carbon; DOM, dissolved organic matter.

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Wheat nutrition and growth as affected by humic acid‐phosphate interaction

Rosa

Silva

Maluf

2018

J. Plant Nutr. Soil Sci.

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Low‐grade phosphate rock correctly combined with humic acid (HA) has the capacity of single superphosphate (SS) in supplying P to growing wheat (Triticum aestivum L.). The aim of this study was to evaluate wheat dry matter, macro‐ and micronutrients accumulated in wheat shoot, and the P availability in a Typic Hapludox (Oxisol) under the following humic acid carbon (C‐HA) concentrations: 0, 5, 10, 50, and 100 mg kg−1, which were combined with two P sources, Araxá phosphate rock (APR) and SS. The experiment was carried out under greenhouse conditions. Firstly, soil samples were incubated with combinations of C‐HA concentrations and P sources for 15 d; after that, wheat was grown in the pots for 43 d. Shoot dry matter (SDM), root dry matter (RDM), total dry matter (TDM), macro‐ and micronutrient uptake, and soil resin‐P were determined. Addition of C‐HA increased RDM growth in soils treated with APR and SS, and improved SDM growth under APR. Accumulation of P, S, Cu, Fe, Mn, and Zn increased in wheat shoots grown in soils treated with APR combined with C‐HA concentrations. The addition of 50 mg kg−1 of C‐HA and APR increased RDM and macro‐ and micronutrient uptake and promoted greater production of SDM in comparison to biomass produced in soil not treated with HA. After wheat cultivation, resin‐P contents in soil with APR decreased over C‐HA concentrations, which is evidence of adequate supply of P to wheat by APR. The right combination of HA and APR leads to wheat growth and nutrient uptake equivalent to those found for SS.

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Competitive interaction between soil-derived humic acid and phosphate on goethite

Cited by 79 publications

References 30 publications

Modifications of phosphorus in Latosol as a function of humic acids and acidity

Modifications of phosphorus in Latosol as a function of humic acids and acidity

Bioavailability of Phosphorus on Iron (Oxy)hydroxide Not Affected by Soil Amendment–Derived Organic Matter

Wheat nutrition and growth as affected by humic acid‐phosphate interaction

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