I release nitrogen back into the atmosphere for the corn after I eat the beans

Is there any evidence that living legumes make the nitrogen they fix available to other plants nearby? I thought they locked it up in root nodules and it only becomes bioavailable if you chop and drop the legumes so that the nodules break down and release nitrogen into the surrounding soil. Otherwise the legumes are just going to use the nitrogen for their own growth.

polyculture intensifies

Why do you think farmers alternate them with corn? Because they get the job done while also being profitable enough to make a living.

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