Effects of clay amendment on adsorption and desorption of copper in water repellent soils

X. Xiong, F. Stagnitti, G. Allinson, N. Turoczy, P. Li, M. LeBlanc, M.A. Cann, S.H. Doerr, M.M. Steenhuis, J.Y. Parlange, G. de Rooij, C.J. Ritsema, L.W. Dekker

Research output: Contribution to journalArticleAcademicpeer-review

9 Citations (Scopus)

Abstract

Copper is an important micronutrient and trace amounts are essential for crop growth. However, high concentrations of copper will produce toxic effects. Australia is increasingly developing production of crops in water repellent soils. Clay amendment, a common amelioration techniques used in Australia, has demonstrated agronomic benefits in increased crop or pasture production. The sorption and desorption of copper and the effect of clay treatment on copper behaviour in a water repellent soil collected from an experimental farm in South Australia is studied. We found that the water repellent soils amended with clay have an increased adsorption capacity of copper. Also the clay-amended soils had an increased ratio of specific sorption to total sorption of copper. The implications of this study to the sustainable agro-environmental management of water repellent soils is discussed
Original languageEnglish
Pages (from-to)397-402
JournalAustralian Journal of Soil Research
Volume43
Issue number3
DOIs
Publication statusPublished - 2005

Keywords

  • heavy-metals
  • sorption characteristics
  • cadmium
  • zinc

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