Friday, December 11, 2009

ag (1210) - Lettuce: nitrogen fixation

legumes fix nitrogen, well at least.. the rhizobium bacteria that attaches themselves to the roots does.

its a mutual relationship, the plan tgets nitrogen and the bacteria gets sugars and whatever from the plant, also an environment to live in.

legumes include plants like clover, medic (eg lucerne) and peas

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