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Cation-anion relationships in crop nutrition: III. Relationships between the ratios of sum of the cations: sum of the anions and nitrogen concentrations in several plant species

Published online by Cambridge University Press:  27 March 2009

R. K. Cunningham
R. K. Cunningham
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts.
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Extract

The ratios of sum of the cations: sum of the anions (R) of sixty-two agricultural and horticultural crops and pasture herbs were measured or calculated and found to be negatively correlated with % N in the plants. This suggests that the proposal that Italian rye-grass has a mechanism regulating the proportion of cations to anions taken up may also apply to other plant species. Dicotyledons had greater B values than monocotyledons at the same N level, but this is probably not because their roots have greater cation exchange capacity.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 63 , Issue 1 , August 1964 , pp. 109 - 111
Copyright
Copyright © Cambridge University Press 1964

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