Nitrogen fixation-In soils, the conversion of free nitrogen from the air by soil organisms to nitrogen compounds that eventually become available to plants.
Nodules-Swellings on the roots of legumes where nitrogen-fixing bacteria live.
NITROGEN FIXATION -- The capture and conversion of atmospheric nitrogen gas into nitrogen compounds, stored in the soil, that can be used by plants.
NODE -- The point on a stem where a leaf or bud is attached.
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nitrogen fixation The conversion of atmospheric nitrogen into plant-available forms by Rhizobia bacteria living on the roots of legumes.
Nitrogen fixation. Some plants naturally trap nitrogen in the soil, improving conditions for future crops.
Inoculation: To increase the plants' nitrogen fixation, treat soybeans at planting with Rhizobium japonicum inoculant, available through seed catalogs which sell edamame.
Spacing: Edamame are well-suited to dense plantings.
These are plants that need nitrogen and plants that assist in nitrogen fixation, or ‘nitrogen fixing plants'. Nitrogen fixing plants have bacteria that grow on their roots.
In order for plants to use the nitrogen in the air, it must be converted in some way to nitrogen in the soil. This can happen through nitrogen fixation or nitrogen can be "recycled" by composting plants and manure.
 See also: Fixation, Nitrogen, Plant, Fertilize, Soil
  
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