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On the components of soil humic acids VII |
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| Authors: | Tsunetomo Hayashi Takeo Nagai |
| Institution: | Faculty of Agriculture , Tottori University , Tottori Prefecture |
| Abstract: | The writers already made it clear that by active alumina the humic acids of A- and B-types contained in various soils could be separated into 3 or 4 components (1). And moreover, absorption spectra (2), nitrogen constituents (3) and colloidal nature (4) of them were studied for the purpose of examining their qualities. |
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