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The microbiology of farmyard manure decomposition in soil. III. Decomposition of the cells of micro-organisms. (with seven text-figures.)

Published online by Cambridge University Press:  27 March 2009

H. L. Jensen
H. L. Jensen
Affiliation:
(Department of Bacteriology, Rothamsted Experimental Station, Harpenden, Herts.)
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Extract

1. Dried cell substance of various micro-organisms—nine fungi, one actinomycetes, two bacteria—were subjected to decomposition in soil and sand. In neutral garden soil, the addition of microbial substance gave rise to a more or less abundant, but always temporary, development of bacteria and actinomycetes; the latter group of organisms was often stimulated to a very conspicuous degree.

2. The development of micro-organisms was accompanied by a more or less abundant production of nitrate. After 60 days 19–61 per cent. of the added N had been nitrified, and after 120 days the proportion had in most cases not increased very materially.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 22 , Issue 1 , January 1932 , pp. 1 - 25
Copyright
Copyright © Cambridge University Press 1932

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