Term
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Definition
| An element with chemical symbol N; as a gas (N2) it makes up 78% of the gases our air we breathe, but plants are unable to use nitrogen from the air directly for a fertilizer. |
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Term
| Biological Nitrogen Fixation |
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Definition
| A process in which a certain type of organism, such as nitrogen fixing bacteria, change or "fix" nitrogen gas (N2) in our air into ammonia (NH3) |
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Term
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Definition
| A compound with chemical formula NH3; nitrogen must be in a non-gas form such as a fertilizer for plants |
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Term
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Definition
| A group of plants that have nodules (small growths) on their roots where bacteria called nitrogen fixing bacteria live; legumes include: alfalfa, clover, beans, peanuts, and soybeans |
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Term
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Definition
| Have a relationship with legumes: the nodules on the legume's roots provides homes for the bacteria to live, and the bacteria convert nitrogen gas (N2) in the air spaces between particles of soil into ammonia gas (NH3), a fertilizer needed for the legume to grow |
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