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GreenThumbGal_07 June 3, 2021 12:25 AM

Nitrogen buddies
Thought I'd do an experiment this summer. Since legumes "fix" nitrogen in the soil, I planted a few bean and pea seeds in some of my larger tomato pots.
So let's see what happens. This could be a "free" way of getting extra N to the plants. At the very least, the tomato plant will provide support for the bean or pea.

Baikal June 3, 2021 04:56 AM

Hello, good experiment, you can also put the legume first in the garden in order for the Rhizobium bacteria to settle in the roots, this bacterium works in symbiosis with the plant and provides it with nitrogen that the bacteria captures, then it is move to the tomato pot, so there is more possibility, a greeting.

paradajky June 18, 2021 01:51 PM

I hope you post back your results :)

While researching companion planting and cover crops the other week, I formed the opinion from many of the university drafted articles that the plant won't actually put nitrogen into the soil while it is alive. Also, if the pot contains sufficient nitrogen, the plant will use that up and the root "nodules" won't really store any. I could be totally wrong, though, it's all new to me, and would be open to correction.

KarenO June 19, 2021 01:51 AM


Here’s some good simple information on the subject.

Milan HP June 26, 2021 03:11 AM

Hello Karen,
thanks for the link. Another popular myth put right. And I agree with Paradajky: legumes won't share N with other plants as long as they use it. The "selfish gene" is wildly spread.;)
Milan HP

GreenThumbGal_07 June 26, 2021 03:19 PM

You're right, I'd forgotten about the "green manure" concept.

At any rate, all plants are doing fine as of this writing.

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