Some plants like lentils peas alfalfa soybean chickpeas etc commonly called as leguminous plants whi...........

Agriculture and Rural Development (Phase-I/II) Soil and Water Conservation

Some plants like lentils, peas, alfalfa, soybean, chickpeas, etc., commonly called as leguminous plants which play an important role in maintaining soil fertility by help fixing one of the primary nutrients in the soil. Name the nutrient fixed and the process involved.

Phosphorous - phosphorous fixation

Potassium – potassium fixation

Iron – iron fixation

Nitrogen – nitrogen fixation

Calcium – calcium fixation

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Explanation:

Leguminous plants, belonging to the Fabaceae family, are unique in nature because it contains certain nodules in its roots. The gram-negative Rhizobium species of bacteria found in these root nodules help to capture the atmospheric nitrogen and trap it in the soil and thus making the soil rich in nitrogen and maintains the soil fertility. This is a natural method of increasing soil fertility. Farmers grow these crops in crop rotation in between main crops to enrich the soil with nitrogen.