Modifying sandy soils with the fine residue from bauxite refining to retain phosphorus and increase plant yield

Ward, S. M.; Summers, Robert

doi:10.1007/bf00747586

Cited by 26 publications

(15 citation statements)

References 7 publications

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“…So the phosphorus release from the RM amended soil was reduced. Similar results have been reported by Summers et al (1993, 1996a, b, 2001, 2002, Vlahos et al (1989, Ward and Summers (1993) and Snars et al (1993), who found that RM can reduce phosphorus leaching from sandy soils.…”

Section: Batch Leaching Experimentssupporting

confidence: 89%

“…A number of studies have shown that RM can be used for phosphorus removal from aqueous solutions (Roberge et al 1999;Li et al 2006Li et al , 2007Huang et al 2008a;Zhao et al 2009;Yue et al 2010). Otherwise, previous study has shown that RM can be an effective amendment for phosphorus immobilization in barren and sandy soils (Summers et al , 1996a(Summers et al , b, 2001(Summers et al , 2002Vlahos et al 1989;Ward and Summers 1993).…”

Section: Introductionmentioning

confidence: 99%

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Reduction of phosphorus release from high phosphorus soil by red mud

et al. 2011

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The high phosphorus levels cause the release of phosphorus from soils, thereby increasing the potential for phosphorus export to adjacent water bodies. The loss of phosphorus from soils to surface waters is a major source of water quality impairment. Therefore, soil phosphorus immobilization seems necessary. In this study, red mud (RM) was employed to immobilize phosphorus in a typical agricultural soil. It was found that phosphorus was effectively immobilized by RM. Batch leaching experiments showed that RM reduced phosphorus release from 14.38 to 2.56 mg/kg when soil was amended with 1% RM. Column leaching experiments showed that RM reduced the total amount of phosphorus released from 36.73 to 18.79 mg/kg during the investigated period. Sequential chemical extraction results indicated that RM amendment transformed H 2 O-P into more stable fractions. The results suggested that application of RM amendment to soils could significantly immobilize soluble phosphorus, reducing phosphorus release to the environment.

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Section: Batch Leaching Experimentssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Reduction of phosphorus release from high phosphorus soil by red mud

et al. 2011

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“…When the soil was analyzed for organic carbon after completion of the experiment it was found that the organic carbon was significantly increased in all concentrations of red mud amended soils inoculated with A. tubingensis compared to uninoculated soil (Table I). It also has been shown that the addition of red mud to sandy soils modifies the soil refining to retain phosphorus and increase plant yield (Ward and Summers, 1993;Summers et al, 1996).…”

Section: Resultsmentioning

confidence: 99%

Aspergillus Tubingensis Reduces the pH of the Bauxite Residue (Red Mud) Amended Soils

Krishna

Reddy

Patnaik³

2005

Water Air Soil Pollut

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Bauxite residue (red mud), a poor substrate for plant growth because of very high pH, salinity and sodicity, is required to be revegetated. The possibility of using Aspergillus tubingensis (AT1), a phosphate solubilizer in red mud amended soils to reduce the alkalinity of the red mud was studied in the present study. A. tubingensis was tested for its ability to grow at high pH and in different concentrations of aluminium (Al), iron (Fe) and sodium (Na). The results showed that A. tubingensis was able to grow at high pH and reduce the alkalinity of the nutrient medium and also to accumulate different metals in the mycelium. The pH values of the red mud amended soils were also significantly reduced (by 2-3 units) by A. tubingensis, which resulted in maize growth improvement. These results suggest that A. tubingensis plays an important role in reducing the pH of the red mud and also helps in promoting the plant growth in it.

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“…Materials rich in Fe and Al represent another group of amendments for reducing P leaching from acid soils Ward and Summers, 1993;Robertson et al, 1997;Phillips, 1998). Application of these materials can be more efficient than liming in acid soils, but the materials rich in Fe and Al are more expensive, and some problems with Al toxicity may arise after their application (Anderson et al, 1995).…”

Section: Phosphorus Retention By the Ap Horizon Of A Spodosol As Inflmentioning

confidence: 99%

PHOSPHORUS RETENTION BY THE Ap HORIZON OF A SPODOSOL AS INFLUENCED BY CALCIUM AMENDMENTS 1

Borůvka

Rechcigl

2003

Soil Science

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The low capacity of acid sandy soils to bind P is one reason for the leaching and runoff of P from these soils. Various soil amendments have been used to reduce P leaching. This study was conducted to show the effect of CaCO 3 , dolomite, gypsum, and CaCl 2 on P retention by the Ap horizon of a Spodosol. Phosphorus sorption was studied in a batch experiment at an initial P concentration range of 0 to 10 mg L ؊1 . The amendment rate used was 0.05 mmol of either Ca or Ca ؉ Mg (and also 0.1 mmol in the case of CaCO 3 and gypsum) per g of soil. The influence on P retention of time after soil amendment (1 h to 1 week) was assessed. P adsorption was described by Langmuir and Freundlich equations. All amendments, except for CaCl 2 , increased soil pH and P retention by soil. CaCO 3 was more effective then dolomite, the carbonates (CaCO 3 and dolomite) were more effective in their interaction with the soil, and gypsum increased P retention by itself, its effect was weakened upon interaction with soil. Sorption of P in soil amended with gypsum was faster than sorption in soil amended with CaCO 3 . The effect of the amendments under study was mainly to provide Ca ions, which must be accompanied by an increase in pH to increase P retention. (Soil Science 2003;Volume 168:699-706)

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Modifying sandy soils with the fine residue from bauxite refining to retain phosphorus and increase plant yield

Cited by 26 publications

References 7 publications

Reduction of phosphorus release from high phosphorus soil by red mud

Reduction of phosphorus release from high phosphorus soil by red mud

Aspergillus Tubingensis Reduces the pH of the Bauxite Residue (Red Mud) Amended Soils

PHOSPHORUS RETENTION BY THE Ap HORIZON OF A SPODOSOL AS INFLUENCED BY CALCIUM AMENDMENTS 1

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