Peat as a natural complexing agent for trace elements

Verloo, M.G. . Lab. voor Analytische en Agrochemie

Peat as a natural complexing agent for trace elements

1980

Verloo, M.G. (Rijsuniversiteit Gent (Belgium). Lab. voor Analytische en Agrochemie)

The complexing properties of peat have been demonstrated in two different series of experiments. Zinc, Cd('++), Cu('++) and Pb('++) were added tp peat suspensions and to purified peat humic acids and equilibrated at different pH. It was shown that the retention of this metal ions increased with increasing pH and that the selectivity of peat decreased in the following way Cu('++) Pb('++) Cd('++) Zn('++) which coincided with the stability of the peat humic acid-metal complexes as determined by a stability index. For the condtioning of peat as a growth medium Ca('++)-ions are necessary to keep the humic complexes flocculated

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Informations bibliographiques

Publié dans

Actae Horticulturae (Netherlands)

Numéro 99

Editeur

ISHS

Langue

anglais

Note

7 ref. Summary (En)

Type

Conference; Summary

Source

Symposium on substrates in horticulture other than soils in situ, International Society for Horticultural Science, Den Haag (Netherlands).- Den Haag (Netherlands): ISHS, Jun 1980. p. 51-56

Conférence

Symposium on substrates in horticulture other than soils in situ, Auchincruive, Scotland (UK), 17-20 Sep 1979

Sur AGRIS depuis: 1981-06-15

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Peat as a natural complexing agent for trace elements

1980

Informations bibliographiques