Studies in the Biological Fixation of Nitrogen
Analyses of living plant tissues show that the four most abundant elements present are usually carbon, hydrogen, oxygen and nitrogen. As a result vigorous plant growth is mainly dependent on an adequate supply of these elements. Carbon, hydrogen and oxygen are normally available to the plant in more...
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| Format: | Dissertation |
| Language: | English |
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ProQuest Dissertations & Theses
01-01-1961
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| Online Access: | Get full text |
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| Summary: | Analyses of living plant tissues show that the four most abundant elements present are usually carbon, hydrogen, oxygen and nitrogen. As a result vigorous plant growth is mainly dependent on an adequate supply of these elements. Carbon, hydrogen and oxygen are normally available to the plant in more than ample supply from atmospheric or soil sources. Nitrogen on the other hand is in a somewhat different category in that while an abundant supply is present in the elemental form in the atmosphere, the majority of plants are unable to assimilate it, being entirely dependent on combined nitrogen available generally in the form of nitrate or ammonium-nitrogen. |
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| ISBN: | 9780355277104 0355277107 |