Question

what is nitrogen fixations​

Answer 1

Answer:

Nitrogen fixation is a process by which molecular nitrogen in the air is converted into ammonia or related nitrogenous compounds in soil. Atmospheric nitrogen is molecular dinitrogen, a relatively nonreactive molecule that is metabolically useless to all but a few microorganisms. 

Explanation:

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Answer 2

Nitrogen fixɑtion

The process of conversion of atmospheric Nitrogen into other Nitrogen compounds especially into ammonia is called Nitrogen fixɑtion.

It is highly energy requiring process.

Most nitrogen fixation occurs naturally, in the soil, by bacteria.

Nitrogen fixɑtion is of 2 types :

• physical nitrogen fixɑtion

• physical nitrogen fixɑtion Biological nitrogen fixɑtion

Three steps of nitrogen fixɑtion are :

• Nitrification

• Assimilation

• Ammonification

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Microorganisms that fix atmospheric Nitrogen are the bacteria called DIAZOTROPHS .

They include Rhizobium, Anabaena, Azotobacter, and Clostridium .

Why is nitrogen fixɑtion important ?

↬ The cycling of nitrogen through the ecosystem is crucial for maintaining productive and healthy ecosystems with neither too much nor too little nitrogen.

↬ Modern agricultural systems also dovelop on nitrogen fixɑtion.

So it is one of the most important biochemical processes on Earth .

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