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The availability to pasture plants of native and applied soil cobalt in relation to extractable soil cobalt and other soil properties
Author(s) -
McLaren Ronald G.,
Lawson David M.,
Swift Roger S.
Publication year - 1987
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.2740390203
Subject(s) - cobalt , soil water , chemistry , cobalt extraction techniques , agronomy , environmental chemistry , environmental science , soil science , inorganic chemistry , biology
In pot trials using a range of soils from South‐East Scotland, plant cobalt concentrations were significantly correlated with the amounts of cobalt extracted from soil with 0.05 M calcium chloride. Plant cobalt concentrations were also correlated with soil pH, showing a decrease with increasing soil pH. There were no significant correlations between plant cobalt concentrations and 0.5 M acetic acid‐extractable cobalt, 0.04 M EDTA‐exttactable cobalt, isotopically exchangeable cobalt or total soil cobalt. Uptake of cobalt by ryegrass from cobalt added to the soil was inversely related to both the ability of the soil to sorb cobalt and to soil pH.