Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-30T07:07:32.988Z Has data issue: false hasContentIssue false

The availability of mineral plant food

Published online by Cambridge University Press:  27 March 2009

N. M. Comber
Affiliation:
Department of Agriculture, The University, Leeds.

Extract

The assumption that plants feed in the soil just as they feed in water culture solution is unjustified and contrary to the facts. In modification of the usual hypothesis two possibilities are discussed.

1. The absorption of colloids by the plant.

2. The union of the root hair with soil and other mineral particles (so that the plant and the soil form one system) and the dissolution of the particle by the organic matter of the root hair so attached.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1922

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

page 363 note 1 Trans. Chem. Soc. 1894, 65.Google Scholar

page 363 note 2 U.S. Dept. Agric. Bureau of Soils Bull. 1903, No. 22.Google Scholar

page 363 note 3 Phil. Trans. 1913.Google Scholar

page 364 note 1 The Soil, 1920.Google Scholar

page 364 note 2 Landw. Ver-Slat. 1916, 88.Google Scholar

page 365 note 1 See Marais, , Soil Sci. 1922, 13, No. 5 and bibliography.Google Scholar

page 365 note 3 Biochemie der Pflanzen, 1913.Google Scholar

page 365 note 3 The Physiology of Plants, 1900.Google Scholar

page 365 note 4 Soil Sci. 1919, 7.Google Scholar

page 367 note 1 See Shull, , Trans. Faraday Soc. 1922, 17.Google Scholar

page 367 note 2 Staz. sper. agr. ital. 1921, 54Google Scholar; J.C.S. Abs. (i), 1922, 509.Google Scholar

page 368 note 1 This Volume, p. 372.

page 368 note 2 Bied. Centr. 1905, 34.Google Scholar

page 369 note 1 See J. Soc. Chem. Ind. 1922, 41, No. 10, 385 a.Google Scholar