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Losses of added phosphate by leaching from N. Welsh soils

Published online by Cambridge University Press:  27 March 2009

G. W. Robinson  and
J. O. Jones
G. W. Robinson
Affiliation:
University College of N. Wales, Bangor.
J. O. Jones
Affiliation:
University College of N. Wales, Bangor.
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Extract

1. Under the extremely humid conditions obtaining in N. Wales, with soils showing a high degree of base-unsaturation, phosphoric acid applied to permanent grassland as basic slag is fugitive in its effect.

2. From profile analyses it is shown that after six to ten years added phosphoric acid is removed from the surface layers, which revert to their original phosphorus status.

3. It is suggested that the phosphorus of soils may be differentiated into that of the naturally occurring stable phosphates and the phosphorus of added dressings which is, under N. Welsh conditions, unstable and removable by percolating waters.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 17 , Issue 1 , January 1927 , pp. 94 - 103
Copyright
Copyright © Cambridge University Press 1927

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References

REFERENCES

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(4)Harrison, W. H. and Das, S. (1921). India Dept. Agric. Mem. Chem. Ser. 5, No. 9, 195–236.Google Scholar