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土壤圈(英文版). 1995, (01)

Evalnation of K-Supplying Power of Soils and Their Par-ticle Fractions by Electro-Ultrafiltration（EUF）English Full Text

$ZHENG WEN-JUAN and BAO SHI-DANNanjing Agriculturat Uniuersity, Nanjing 210095 ( China)

Abstract: The results from comparative study of the EUF-K values of four different soils and of their varions particlefractions （＜2μm, 2-10μm and 10 50 μm） showed that the EUF-K values were related to the composition ofclay minerals and the soil particle size. The EUF-K values （0-35 min） were closely related to the amountof rapidly available K and part of non-exchangeable K of soils. Biological experiments proved that EUFtechnique was an effective method for evaluating soil K-supplying power.
Keywords：

biological experiment; clay minerals; EUF-K; particle composition;

  • Series：

    (D) Agriculture

  • Subject：

    Fundamental Science of Agriculture; Agronomy

  • Classification Code：

    S158

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