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nitrogen fixation #871672

Asked June 05, 2024, 9:50 AM EDT

Do peas and other nitrogen-fixing plants benefit the other crops in my garden while they're growing? Or only after I chop them up and let them decompose?

Franklin County Ohio

Expert Response

Hi Sarah, I haven't been able to find the answer to your question but my thinking is that the rhizobium bacteria in the nodules on legumes fix nitrogen for the benefit of the legume itself.  I would think there would be some leakage from the nodules into the soil that other roots could pick up during the growing season.  It would not be a lot of nitrogen products but just a small amount.  Generally, it is thought that the roots of the plants when they dry up in the fall give off the nitrogen products at that time.  

Since you live in Franklin County you might pose the question to the OSU Franklin County Extension office during normal business hours and see if they have further insight into the query.  Don
Don Creamer  Replied June 10, 2024, 11:57 AM EDT
Hi Don, 

Thanks so much for your reply.

Sarah H.

On Monday, June 10, 2024, Ask Extension <<personal data hidden>> wrote:
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

Dear Sarah, here's the response to your question:

Hi Sarah, I haven't been able to find the answer to your question but my thinking is that the rhizobium bacteria in the nodules on legumes fix nitrogen for the benefit of the legume itself.  I would think there would be some leakage from the nodules into the soil that other roots could pick up during the growing season.  It would not be a lot of nitrogen products but just a small amount.  Generally, it is thought that the roots of the plants when they dry up in the fall give off the nitrogen products at that time.  

Since you live in Franklin County you might pose the question to the OSU Franklin County Extension office during normal business hours and see if they have further insight into the query.  Don

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The Question Asker Replied June 10, 2024, 12:41 PM EDT
You really should ask someone at OSU Extension about this for more information.  Don
Don Creamer  Replied June 11, 2024, 8:54 PM EDT

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