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Document Type

Research

Abstract

Berthelot in 1888 was the first to suggest that nitrogen may be added to field soils through the activity of microorganisms. In 1901 Beijerinck isolated a non-symbiotic, aerobic, nitrogen-fixing organism which he called Azotobacter chroococcum. Since this time five other species belonging to this genus have been isolated and likewise have been found capable of fixing atmospheric nitrogen.

Publication Date

1935

Journal Title

Proceedings of the Iowa Academy of Science

Volume

42

Issue

1

First Page

55

Last Page

61

Copyright

© Copyright 1935 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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