Hostname: page-component-78c5997874-lj6df Total loading time: 0 Render date: 2024-11-03T05:32:38.138Z Has data issue: false hasContentIssue false

Pasture Problems: The Response of Individual Species under Manures

Published online by Cambridge University Press:  27 March 2009

R. G. Stapledon
Affiliation:
(Agricultural Department, University College of Wales, Aberystwyth.)

Extract

The foregoing facts clearly show that the reaction of species to manures is not a simple function of the chemical influences of particular substances on the growth of individual plants. They prove, however, that the final adjustment reached by the various plants is profoundly affected as the result of competitive interaction between all the species which contribute to the herbage. Furthermore, it has been shown that if manurial plots are studied in the light of the type of grassland on which the experiments are carried out, that the influence of this competitive interaction can be fairly accurately gauged. The principles which regulate the resorting of species under the influences of a disturbed equilibrium are, broadly stated, as follows: if the changes in environment are not of a fundamental character, the tendency will be for plants near their maximum distribution to be decreased, for those near their minimum to be increased, and for those near their optimum to be increased or decreased within the limits of their highest and lowest cardinal figures.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1914

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

REFERENCE

1.Hall, A. D.An Account of the Rothamsted Experiments. London, 1905.CrossRefGoogle Scholar
2.Armstrong, S. F.The Botanical and Chemical Composition of the Herbage of Pastures and Meadows.” Jour. Agr. Sci. Vol. II. 3, 1907.Google Scholar
3.Smith, W. G. and Crampton, C. B.Grassland in Britain.” Jour. Agr. Sci. Vol. VI. 1, 1914.Google Scholar
4.Stapledon, R. G.Pasture Problems: Drought Resistance.” Jour. Agr. Sci. Vol. V. 2, 1912.Google Scholar
5.Stapledon, R. G.Sheep Walks of Mid-Wales. Dept. Agr. Aberystwyth, 1914.Google Scholar
6.Stapledon, R. G. “Flora of Certain Cotswold Pastures.” R. A. College Cirencester Sci. Bull. No. 2, 1910.Google Scholar
7.Stapledon, R. G. and Kinch, E. “Expts. on Perm. Grass.” Ib. No. 3, 1911.Google Scholar
8.Stapledon, R. G. and Kinch, E. Do., Ib. Nos. 4 and 5, 19121913.Google Scholar
Stapledon, R. G. and Kinch, E. and Tuener, D. “Expts. on Grass for Hay and Pasture.” Ib.Google Scholar
9.Gilchrist, D. A. “Report on Tree Field and other Pasture Expts.” Northumberland County Expt. Station Bull. No. 8, 1906.Google Scholar
10.Gilchrist, D. A. “Guide to Expts., Manor Farm, Garforth.” No. 85, 1912.Google Scholar
11.Milburn, and Gault, . The Liming of Meadow Land. Lancaster Agr. Dept. 1910.Google Scholar