Trace elements extractable by 2-ketogluconic acid from soils and their relationship to plant contents |
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Authors: | M L Berrow M S Davidson J C Burridge |
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Institution: | (1) Departments of Spectrochemistry and Microbiology, Macaulay Institute for Soil Research, Aberdeen, Scotland |
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Abstract: | Summary Trace element levels extractable by 2-ketogluconic acid (2-KG), ammonium acetate, acetic acid, EDTA, and DTPA were determined in three different soils of the Tarves association. The 2-ketogluconic acid was derived from 2-litre batch cultures of a soil bacterium,Erwinia sp. Pasture grasses and clovers growing on these soils were also analysed. At the same pH, 2-KG extracted more Co, Ni and Zn and considerably more Fe, Ti and V than ammonium acetate. The quantities of Cu, Mn, Mo, Ni and Zn extracted by 2-KG from the three soils generally reflected, in a similar way to the other extractants, the contents of these elements in grasses and clovers growing on the soils. |
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Keywords: | Chelation Erwinia-produced 2-ketogluconic acid Pasture species contents Soil extractions Trace elements |
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