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An appraisal of currently used soil tests for available copper with reference to deficiencies in English soils
Author(s) -
Tills Alison R.,
Alloway Brian J.
Publication year - 1983
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740341107
Subject(s) - copper , soil water , organic matter , soil test , environmental chemistry , chemistry , environmental science , soil science , soil organic matter , organic chemistry
Eight soil tests for plant‐available copper were used on twenty English soils of moderate to low copper status. The ability of these tests to predict plant copper uptake, tested in a pot trial, was compared using multiple regression analysis including other soil factors such as pH, organic matter and clay content. The EDTA soil test was found to give the best prediction of plant uptake from a regression equation including EDTA extractable soil copper, pH, free Mn and Fe oxide, clay and organic matter content.