Plant-Available and Extractable Sulfur in Some Soils of England and Wales

Jones, L. H. P.; Cowling, D. W.; Lockyer, D. R.

doi:10.1097/00010694-197208000-00005

Cited by 64 publications

(26 citation statements)

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“…The six extracting solutions were 1.0 mol L-' NH^OAc (Vendrell et al, 1990), 0.016 mol L-' KH^PO^ (Jones et al, 1972), 0.01 mol L-' Ca(H2PO4)2 (Schulte and Eik, 1988), 0.01 mol L"' CaClj (Williams and Steinberg, 1959), Morgan NaOAc (Morgan, 1941), and the Mehlich-3 solution (Mehlich, 1984). The six extracting solutions were 1.0 mol L-' NH^OAc (Vendrell et al, 1990), 0.016 mol L-' KH^PO^ (Jones et al, 1972), 0.01 mol L-' Ca(H2PO4)2 (Schulte and Eik, 1988), 0.01 mol L"' CaClj (Williams and Steinberg, 1959), Morgan NaOAc (Morgan, 1941), and the Mehlich-3 solution (Mehlich, 1984).…”

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confidence: 99%

A Comparison of Soil Sulfur Extraction Methods

Ketterings

Miyamoto

Mathur

et al. 2011

Soil Science Soc of Amer J

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Ihere are currently no field calibration data for interpretation of soil S tests in the U.S. Northeast and limited data elsewhere. Given the reduction in the S deposition rate during the past decade in the Northeast, it is imporunt to evaluate the potential for soil testing as a tool for S management in the region. An incubation study was conducted to compare: (i) the accuracy and effectiveness of six S extraction methods to identify an increase in available S; and (ii) S detection in solution using inductively coupled plasma atomic emission spectroscopy (ICP-AES) at 1S2 nm with curbidimetric determination of S using BaCl2x2H2O and a spectrophotometer at 420 nm. The six extraction solutions were 1.0 mol L"' NH^OAc, 0.016 mol L"' KHjPO^, 0.01 mol L"' CaiHjPO^jj, 0.01 mol L"' CaCI^, Morgan, and the Mehlich-3 solution. Four New York soils were treated with six S rates (0,28,56,84,112,168 kg ha~') applied as gypsum and incubated for 4 wk (in the dark, at room temperature, 75% ofñeld capacity, four replications). SulRir test results correlated with $ fertilizer application for all extraction and detection methods; however, the 0.01 mol L~' CaClj extraction with ICP-AES detection of S in solution was best correlated with S added (highest r^, smallest RMSE across all four soils), the regression equation had the largest slope, and this method showed the greatest consistency between the two detection methods. We conclude 0.01 mol L~' CaClj extraction with ICP-AES detection of S is most promising and should be evaluated in field trials. Abbreviations: ICP-AES, inductively couple plasma atomic emission spectroscopy; OM, organic matter.

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confidence: 99%

A Comparison of Soil Sulfur Extraction Methods

Ketterings

Miyamoto

Mathur

et al. 2011

Soil Science Soc of Amer J

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“…Assessment of soil S-supply to crops is currently based on chemical extraction methods and in most cases the Sfertilizer recommendations are thought to be completely inadequate and the concentration of available S in the soil at any time being a function of considerably more than just the capacity of the soil to supply crop-available S from organic matter. Good correlation between estimates of available S from chemical extractions and crop response to S-fertilizer applications based on those estimates is unlikely because S-uptake during plant growth is generally considerably greater than the concomitant decline of extractable S in the soil (Bettany et al, 1974;Jones et al, 1972;Williams and Steinbergs, 1964).…”

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confidence: 99%

Evaluation of methods to assess adequacy of potential soil S supply to crops

1987

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Eight methods were evaluated for assessment of the likely soil S-supply to a crop and in particular to identify likely deficiencies in this supply. Of the methods, only sulphate production from incubated soil amended both with a S-containing amino acid and elemental S correlated with field response of grass yield to S-fertilizer applications. Tissue S-concentrations in plants grown for a short-term bioassay also correlated with field S-fertilizer response. Neither sulphate extracted by 3 different salt extractions, nor sulphate production from unamended incubated soil, nor soil arylsulphatase activity, correlated with field fertilizer response.

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“…As the question of the availability to plants of the extracted amount of sulphur could not be unequivocally analyzed, either, the choice of extraction method, for instance extraction with acid ammonium acetate, must be regarded as being a provisional one pending further results of research on the chemical status of sulphur in the soil and the ability of plants to absorb various sulphur compounds (cf. Jones et al 1972). …”

Section: Total Sulphur and Elemental Sulphurmentioning

confidence: 99%

Sulphur status in Finnish cultivated soils

Korkman

1973

AFSci

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A method for determining total sulphur in plant material and soil samples using the induction furnace technique and subsequent turbidimetric determination of sulphate sulphur was discussed. A procedure for extracting sulphur from soil samples with ammonium acetate (pH 4.65), the interference of the organic matter being reduced by oxidation of the extract with H2O2, was proposed. Sulphur balance in Finnish cultivated soils was estimated by taking into account the average amounts of emitted (8 kg S/ha/yr.), precipitated (8 kg S/ha/yr.) and leached (8 kg S/ha/yr.) sulphur. The actual situation in the cultivated soils seems thus to be depending, on an average, on the uptake by plants and the sulphur applied (12 kg S/ha/yr. in the early 1970s). In 104 samples of cultivated soil, the content of total sulphur showed a slight correlation with the content of organic carbon. The amounts of sulphur extracted in various ways were not predictable by means of the soil characteristics used (pHCaCl2, org. C and texture). Extracted sulphur did not correlate sufficiently with the development and sulphur uptake of plants. Under field conditions in northern Finland, sulphur application produced a relatively distinct result in respect both to the ley yields on Carex peat, and their sulphur content. On mineral soils in southern Finland the yields were unaffected by supplementary fertilization with sulphur. In the pot experiments performed a fairly close relationship between sulphur and nitrogen was demonstrated.

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Plant-Available and Extractable Sulfur in Some Soils of England and Wales

Cited by 64 publications

References 0 publications

A Comparison of Soil Sulfur Extraction Methods

A Comparison of Soil Sulfur Extraction Methods

Evaluation of methods to assess adequacy of potential soil S supply to crops

Sulphur status in Finnish cultivated soils

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