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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

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References

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