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土壤圈(英文版). 1996, (03)

Zero Point of Charge of Organo-Mineral ComplexesEnglish Full Text

M. T. ANSARI; XU JIAN-MING and YUAN KE-NENG(Zhejiang Agricultural University, Hangzhou 510029 China)

Abstract: Five soil samples collected from China and two soil samples from Pakistan with widely different origin and characteristics were used to study the zero point of charge （ZPC） of soil colloids. The results showed that the value of zero point of charge of H-clay complexes was lower than that of H-clays in all the samples.Natural clay complexes had the highest ZPC as compared to H-clay complex and H-clay in alfisol, closer to H-clays rather than H-clay complexes in oxisol and udult. The delta value of ZPT （zero point of titration）to ZPC was higher in H-clay complexes than in H-clays.
Keywords：

organo-mineral complexes; soil colloids; zero point of charge;

  • Series：

    (D) Agriculture

  • Subject：

    Fundamental Science of Agriculture; Agronomy

  • Classification Code：

    S153

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