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The mineral content of air and rain and its importance to agriculture

Published online by Cambridge University Press:  27 March 2009

G. Ingham
G. Ingham
Affiliation:
215 Union Park Gate, Pretoria, South Africa
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Extract

1. Evidence, both direct and indirect, has been adduced to prove that the air is sufficient both qualitatively and quantitatively to supply all the nutritional requirements of plants, independently of the soil or soil bacteria.

2. The fertility of an undisturbed soil lies chiefly in the surface inch or two and is due to adsorption of plant nutrients from the air by organic and inorganic colloids, such nutrients being carried down to the roots of the growing crop by rain.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 40 , Issue 1-2 , January 1950 , pp. 55 - 61
Copyright
Copyright © Cambridge University Press 1950

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References

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