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The influence of hydrogen-ion concentration on the decomposition of soil Organic matter by hydrogen peroxide (With two text-figures.)

Published online by Cambridge University Press:  27 March 2009

J. S. Hosking
Affiliation:
Waite Agricultural Research Institute1, Glen Osmond, South Australia.

Extract

The decomposition of the organic matter of the soil by means of hydrogen peroxide is shown to be a function of the hydrogen-ion concentration of the soil, alkaline soils permitting of a very low degree of oxidation, while with acid soils up to 90 per cent, of the organic matter is destroyed.

The results obtained with a range of soils suggest that a portion of the organic matter is oxidised irrespective of the soil reaction, while the oxidation of the remainder is a definite function of the hydrogen-ion concentration, the relation being expressed by the equation

The proportion of the organic matter oxidised further appears to be a definite function of the clay content of the soil. Alkaline soils containing free manganese dioxide also show small losses.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1932

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References

REFERENCES

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