"Under ideal conditions, pulse crops can fix as much as 50-80 per cent of their total nitrogen requirement, with the remaining nitrogen coming from soil or fertilizer sources. Pulse crops can be ranked according to their estimated ability to fix nitrogen: faba bean > pea > chickling vetch > chickpea > lentil > soybean > lupin> dry bean."
I looked up pulses "nitrogen fixing" in Google to find that site).
The alternating with pulses, a nitrogen fixing plant, helps replenish what's lost while planting wheat and paddy. The pulses aid in restoring the amount of nitrogen back into the soils.
All leguminous plants such as pea, pulses, beans etc, add nitrogen to the soil by fixing the atmospheric nitrogen in their root nodules due to the presence of nitrogen-fixing bacteria inside them such as Rhizobium.
Plant roots
you are idot
Nitrogen fixation occurs in leguminous plant that have nitrogen fixing bacteria in the root nodule. The plants utilize the nitrogen from the nitrogen fixing bacteria. The bacteria utilize plant sugars formed via photosynthesis.
The root nodules of leguminous plants like gram,pulses,etc. contain nitrogen-fixing bacteria,rhizobia, which help in fixing nitrogen in the soil for the plants to absorb.Nitrogen is essential for the growth of plants.
nodules
nitrogen-fixing bacteria by brazilianninja
nitrogen-fixing bacteria by brazilianninja
Cyanobacteria can affix atmospheric nitrogen (N2).
Nitrogen fixing bacteria are anaerobic bacteria present in the soil or in some plant roots that change nitrogen gas from the atmosphere into solid nitrogen compounds (e.g. ammonium salts) that plants can use in the soil.Nitrogen fixing bacteria that are symbiotic with plants use sugars supplied by the plant they live in to provide the metabolic energy to carry out this process.
It allows nitrogen atoms to continually cycle through the biosphere.