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Some Copper-Complexing Properties of Peat
Marie T. Ennis
Irish Journal of Agricultural Research
Vol. 1, No. 2 (Apr., 1962), pp. 139-146
Published by: TEAGASC-Agriculture and Food Development Authority
Stable URL: http://www.jstor.org/stable/25555246
Page Count: 8
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Three copper complexes of peat were prepared in the laboratory. The availability of the copper in each complex was assessed in pot experiments by using them as the only source of copper to oat plants, which received an otherwise complete nutrient solution. Yields and copper contents of the plants were used as the criteria of availability and they indicated that the most stable complex could not release sufficient copper to support normal plant growth. The copper in this complex was resistant to extraction with normal hydrochloric acid. The complexes were recovered after the harvesting and any changes in the distribution of their copper were shown to be the result of the prolonged leaching with nutrient solution during the pot experiment.
Irish Journal of Agricultural Research © 1962 TEAGASC-Agriculture and Food Development Authority