Effect of soil moisture and wetting-drying on Mn release in Ca（NO3）2-amended soils

Abstract

Abstract: A study on the effects of two moisture levels (200 and 400g·kg^-1) and wetting-drying on the solubility of Mn in Ca(NO₃)₂-amended soils showed that water regime was a factor affecting Mn availability.Easily reducible Mn was transformed into soluble and exchangeable Mn,when soil water content was high.Salt had a definite effect on the transformation of easily reducible Mn.NO₃^- could decrease soil redox potential,and inhibit the transformation of easily reducible Mn.Wetting-drying significantly(α<0 05) decreased the content of soil water-soluble and exchangeable Mn,while Ca(NO₃)₂ increased the insolubility of Mn,which might eventually lead to the deficiency of soil Mn.

CLC Number:

S153.6

SI Youbin, MA Youhua, ZHANG Ligan . Effect of soil moisture and wetting-drying on Mn release in Ca（NO₃）₂-amended soils[J]. Chinese Journal of Applied Ecology, 2001, (2): 233-236.

References

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Effect of soil moisture and wetting-drying on Mn release in Ca（NO₃）₂-amended soils

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