Why would the plant need nitrogen from the ground when the air is 78% nitrogen?
In: Biology
Because the nitrogen in the air, N2, is very, very hard to actually make use of. It’s phenomenally stable.
There are some bacteria in the ground that are able to do it. They can turn atmospheric Nitrogen into ammonia (NH3) or similar compounds. Plants are much more readily able to make use of compounds like these to, say, construct proteins.
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