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Nitrogen Cycle

"Nitrogen Cycle" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure, which enables searching at various levels of specificity.

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The circulation of nitrogen in nature, consisting of a cycle of biochemical reactions in which atmospheric nitrogen is compounded, dissolved in rain, and deposited in the soil, where it is assimilated and metabolized by animals, plants, bacteria, and fungi, eventually returning to the atmosphere by bacterial decomposition of organic matter.

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This graph shows the total number of publications written about "Nitrogen Cycle" by people in this website by year, and whether "Nitrogen Cycle" was a major or minor topic of these publications.
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