Cobalt concentrations in some new zealand fodder plants grown on cobalt-sufficient and cobalt-deficient soils

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Abstract
It was found that marked differences in cobalt concentration occurred between fodder plants grown in association with each other on soils deemed to be cobalt-sufficient. In particular, lucerne and red and white clovers accumulated more cobalt than did grasses. In contrast, there was no significant difference in cobalt concentration between white clover and mixed grasses, when samples were taken from swards grown on known cobalt-deficient soils.