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Studies in soil cultivation. III. Measurements on the Rothamsted classical plots by means of dynamometer and plough.

Published online by Cambridge University Press:  27 March 2009

William B. Haines  and
Bernard A. Keen
William B. Haines
Affiliation:
(Soil Physics Department, Rothamsted Experimental Station, Harpenden.)
Bernard A. Keen
Affiliation:
(Soil Physics Department, Rothamsted Experimental Station, Harpenden.)
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Extract

Maps of soil resistance to ploughing have been drawn up from the dynamometer readings over several seasons for the Rothamsted classical plots, carrying wheat, barley and roots respectively.

The conclusions as to the effect of manurial treatment are only of a general nature at the present stage of the work. Such differences are certainly small in comparison with the natural variations in the soil.

In the case of the Broadbalk wheat plots the drawbar pull values have been shown to have a close relationship with the clay content of the soil and with certain aspects of the soil drainage.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 15 , Issue 3 , July 1925 , pp. 395 - 406
Copyright
Copyright © Cambridge University Press 1925

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References

page 400 note 1 This Journal, 12, 1922, p. 306.Google Scholar

page 404 note 1 Hall, A. D. and Miller, N. H. S.. Proc. Roy. Soc. B. 77 (1905), p. 10.CrossRefGoogle Scholar

page 405 note 1 Haines, W. B. “Studies in the physical properties of soil (I).” This Journal, 15 (1925). p. 197.Google Scholar