Phosphate Sorption Parameters of Representative Soils From Rio Grande Do Sul, Brazil

Syers, J. K.; Evans, T. D.; Williams, Jake Ryland; Murdock, J. T.

doi:10.1097/00010694-197110000-00009

Cited by 74 publications

(30 citation statements)

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“…The closest relationship was found with DCB extractable Fe (Figure 1). This is in agreement with earlier results by Adepetu (1981) but at variance with some earlier studies (Syers et al, 1971;Yuan & Breland, 1969;Ballard & Fiskel, 1974. The predominance of DCB extractable Fe over DCB extractable AI and other forms of AI and Fe in most highly weathered Nigerian soils may be responsible in part, for the differences.…”

Section: Soil P Relationshipssupporting

confidence: 94%

Phosphorus sorption capacity of low activity clay soils of South Western Nigeria and its usefulness in evaluating P requirement of rice

Adetunji

1996

Nutr Cycl Agroecosyst

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Field and laboratory experiments were conducted on 15 low activity clay soils in Ogun State of Nigeria to evaluate the relationships between P sorption capacity and some soil properties and the use of sorption indices in evaluating the P requirement of rice. Langmuir adsorption capacity (b) varied from 30.9 to 414.3/zg g-l. Although adsorption capacity was related significantly to a number of soil properties, citrate dithinonite bicarbonate (CDB) extractable Fe was the most important variable accounting for 99% of the variation in adsorption capacity. The solution P concentration (SPC) required to achieve 95% maximum grain yield of rice varied from 0.03 in a sandy clay soil to 0.19 #g m1-1 in a sandy soil, while the quantity of fertilizer P required to attain the solution P concentration (Standard Phosphate requirement, SPR) varied from 14.1 to 88.7 kg ha -1 . Highly significant power function relationships were obtained between SPC and b (r = 0.93) and between SPR and b ( r = 0.93). The P buffering capacity (PBC) of the soils indicated that the soils are moderately buffered. However, SPR accounted best for the variation in grain yield of rice on the field (R 2 = 0.90). The use of P sorption indices in estimating P needs of rice appears superior to the use of chemical extractants.

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Section: Soil P Relationshipssupporting

confidence: 94%

Phosphorus sorption capacity of low activity clay soils of South Western Nigeria and its usefulness in evaluating P requirement of rice

Adetunji

1996

Nutr Cycl Agroecosyst

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“…Soil organic matter (OM) was similar between soils (Table 1). Although OM is not related to P sorption in non-sandy soils with appreciable Al and Fe (Leinweber et al, 1997;Lookman et al, 1996;Mozaffari and Sims, 1994;Syers et al, 1971;Zhang et al, 2005), OM can indirectly impact P sorption through interaction with Fe and Al oxides and hydroxides. This interaction between OM and Al+Fe has been shown to increase the amorphous nature of Al and Fe oxides and hydroxides, thereby increasing surface area, and potential P sorption (Loveland et al, 1983;Mozaffari and Sims, 1996;Niskanen, 1990;Saunders, 1965).…”

Section: Soil Propertiesmentioning

confidence: 95%

Application of Isothermal Calorimetry to Phosphorus Sorption onto Soils in a Flow-through System

Penn

Heeren

Fox

et al. 2014

Soil Science Society of America Journal

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“…Studies identi$ring soil components that sorb P may be one of two types: (i) P sorption by soils from which components such as oxides or organic matter have been more or less selectively removed by chemical extractants (e.9., Bromfield.1964;Syers et al 1971); (ii) statistical correlations of P sorption with measured characteristics (e.g., organic matter, clay, pH) of whole soils (Harter 1969;Ballard and Fiskell 1974\ (Parfitt 1978). Phosphorus sorption by soil components has also been studied using synthetic or naturally occurring oxides and hydroxides of Fe and Al (e.g., Parfitt 1989; van Riemsdijk et al 1984) (Soon 1990 (Sibbesen 1981).…”

Section: Canadian Journal Of Soil Sciencementioning

confidence: 99%

Solubility and retention of phosphate in soils of the northwestern Canadian prairie

Soon¹

1991

Can. J. Soil. Sci.

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retention of phosphate in solls of the northwestern Canadian prairie.Can.J.Soil. ioils in the northwestern Canadian Prairie were studied to gain insights into the retention of fertilizer P added to soil. The soils were mostly acidic with base saturation of 59-95%. The solubility of P as determined by the equilibrium P conientration and phosphoric acid potential-was low and appeared to be controll-ed by s6rption of phosphate by soil components. The mean equilibrium solution P concentration was 0.d3 ri L-'. Piosphorus concentration in saturation extracts was about one order of magnitude higher, but would have included organic and colloidal P since P analysis in these.e*{a.

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Phosphate Sorption Parameters of Representative Soils From Rio Grande Do Sul, Brazil

Cited by 74 publications

References 0 publications

Phosphorus sorption capacity of low activity clay soils of South Western Nigeria and its usefulness in evaluating P requirement of rice

Phosphorus sorption capacity of low activity clay soils of South Western Nigeria and its usefulness in evaluating P requirement of rice

Application of Isothermal Calorimetry to Phosphorus Sorption onto Soils in a Flow-through System

Solubility and retention of phosphate in soils of the northwestern Canadian prairie

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