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Studies on the microbiology of grassland soil. Part I. General chemical and microbiological features1

Published online by Cambridge University Press:  27 March 2009

W. G. E. Eggleton
W. G. E. Eggleton
Affiliation:
(Imperial Chemical Industries, Agricultural Research Station, Jealott's Hill, Bracknell, Berks.)
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Extract

1. Pasture soil was found to be characterised by relatively high ammonia and low nitrate-nitrogen content during the main growing period (May-September). Applications of sulphate of ammonia while initially raising the ammonia and nitrate-nitrogen levels, ultimately led to a lowering. The effect of irrigation during the spring, when the soil moisture content was high, was to depress the ammonia and nitratenitrogen levels, but during the dry summer months and subsequently the levels were appreciably raised.

2. A small though definite periodic change in the reaction of normal grassland soil took place during the season, the soil being most acid during the summer. Added sulphate of ammonia slightly accentuated the change, and the return to normal in the autumn was not quite attained.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 24 , Issue 3 , July 1934 , pp. 416 - 434
Copyright
Copyright © Cambridge University Press 1934

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References

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