Adsorption strength of zinc for soil humus |
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| Authors: | Keiichiro Matsuda Muneaki Ikuta |
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| Institution: | 1. Faculty of Agriculture , Shizuoka University , Iwata , Japan;2. Faculty of Agriculture , Shizuoka University , Iwata , Japan;3. Miyoshi Oil and Fat Co. , Japan |
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| Abstract: | Soil humus plays a significant role in the cation exchange of a soil. YOSHIDA (1) showed that, as a general rule, divalent ions such as calcium and magnesium were adsorbed more strongly onto humus than monovalent ions such as ammonium and potassium in an ion-exchange reaction. He did not, however, describe the behavior of heavy metal ions. BREMNER et al. (2) first suggested that soil organic matter forms complexes with polyvalent cations. HIMES and BARBER (3) found that soil organic matter reacts with divalent metal ions in a manner similar to the chelation reaction. Reviews of the soil organic matter-metal complex have been written by BREMNER et al. (2) and KAWAGUCHI, MATSUO and KYUMA (4). |
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