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A method for estimating the number of active protozoa in the soil

Published online by Cambridge University Press:  27 March 2009

D. W. Cutler
D. W. Cutler
Affiliation:
(Rothamsted Experimental Station.)
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Extract

1. A method is described by which it is possible to estimate the numbers of active protozoa in a soil.

2. The total number of protozoa is first found by a dilution method. A fresh portion of the soil is then treated with 2 per cent. HCl (sp. gr. 1·15) overnight. By this means all active forms are killed. A second count by the dilution method gives the number of cystic protozoa in the soil. From these results the number of active forms can be ascertained.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 10 , Issue 2 , April 1920 , pp. 135 - 143
Copyright
Copyright © Cambridge University Press 1920

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References

REFERENCES

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