A review of certain aspects of sulphur as a soil constituent and plant nutrient

Freney, J. R.; Barrow, N. J.; Spencer, Kate L.

doi:10.1007/bf01377669

Cited by 36 publications

(14 citation statements)

References 71 publications

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“…A considerable proportion can be reduced to hydrogen sulfide with a mixture of hydriodic acid, formic acid, and hypophosphorous acid (FRENEY [1961], JOHNSON and NISHlTA [1952]), a reagent that does not liberate sulfur directly bonded to carbon. A considerable proportion can be reduced to hydrogen sulfide with a mixture of hydriodic acid, formic acid, and hypophosphorous acid (FRENEY [1961], JOHNSON and NISHlTA [1952]), a reagent that does not liberate sulfur directly bonded to carbon.…”

Section: G Andersonmentioning

confidence: 99%

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Soil Components

1975

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Section: G Andersonmentioning

confidence: 99%

“…Part can be mineralized by hydrolysis with 6 N hydrochloric acid, and there is apparently a very labile fraction which is mineralized by heating or grinding (WILLIAMS and STEIN BERGS [1959], SPENCER and FRENEY [1960], , FRENEY[1961]). Of this, 8 % was in inorganic forms, but the remainder was apparently organic.…”

Section: G Andersonmentioning

confidence: 99%

Soil Components

1975

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“…Although cores of soil were shaped and potted intact, they were subject to some drying. MineralisatIon of sulphur in organic matter may have occurred as a result (Freney et al 1962). …”

Section: Difjerences Among Grass Species In Response To Sulphurmentioning

confidence: 99%

Responses of grasses to sulphur fertilisers

O'Connor¹,

Vartha²

1969

New Zealand Journal of Agricultural Research

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ABSTRACIExperiments are reported from tussock grassland soils in which different grasses were grown as spaced plants in existing turf, sown in cultivated and uncultivated soil, and grown in pot cultures.Differences are demonstrated among grasses in response to sulphur when nitrogen supply is improved. Cocksfoot and ryegrass showed a response to applied sulphur fertilisers when sown after cultivation, whereas resident grasses, principally sweet vernal and browntop, showed no gain in yield from sulphur after cultivation. Effects of cultivation and herbicide treatment on the availability of sulphur from different sources are also reported.Experiments are reported which indicate that the respo.,se to sulphate by cocksfoot depends on the level of nitrogen uptake. Where sulphate supply was very high relative to available nitrogen. there was little or no improvement in cocksfoot growth. At moderate levels of added nitrogen, treatment with high levels of calcium sulphate frequently resulted in significantly less growth than treatment with lower levels of calcium sulphate. Where nitrogen uptake is increased without improvement in sulphate supply, a large proportion of nitrogen in herbage may be in non-protein form.Results are discussed in relation to the likely trends in pasture composition and fertiliser needs in the course of improvement of grasslands in sulphur-deficient areas.

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“…Besides, it was shown that sulphate ions influenced the morphology of CaCO 3 precipitates by adsorbing on the vaterite surface or they formed the anhydrous calcium sulphate on the calcite surface [10]. Sulphate ions could also be retained by soils with high contents of aluminium [11] and by sulfides precipitates [12]. The effect of sulphate ions on the iron oxide hydroxide (FeOOH) precipitation was less studied.…”

Section: Introductionmentioning

confidence: 99%

Effect of sulphate ions on iron precipitation from aqueous solutions

Korchef¹,

Amor

Galland

et al. 2008

Cryst. Res. Technol.

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In the present work, the effects of sulphate ions on the iron precipitation from aqueous solution were investigated. It was shown that sulphate ions delayed the iron precipitation when this ion was added in form of Na 2 SO 4 . This effect became less significant in presence of magnesium or calcium. The iron precipitates were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and differential scanning calorimetry (DSC). In all experiments iron oxide hydroxide (FeOOH) precipitates were obtained. The sulphate ions were adsorbed on the surfaces of the iron precipitates. The effect of temperature on these precipitates was also studied. At 237°C, the iron oxide hydroxide precipitates obtained from NaCl solution was transformed in crystallized hematite, Fe 2 O 3 . At 793°C, the hematite was partially transformed into magnetite (Fe 3 O 4 ). In presence of sulphate ions, this transformation was not detected.

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A review of certain aspects of sulphur as a soil constituent and plant nutrient

Cited by 36 publications

References 71 publications

Soil Components

Soil Components

Responses of grasses to sulphur fertilisers

Effect of sulphate ions on iron precipitation from aqueous solutions

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