Question

why are nitrogenous fertilizers not added to soil in which leguminous plants are grown

Answer 1

Nitrogenous fertiliser is not added in soil in which leguminous plants are grown because the nitrogen fixing bacteria reside in the root nodules of the leguminous plants. These bacteria convert atmospheric nitrogen into soluble nitrogenous compounds. Hence the soil in which legumes are grown becomes rich in nitrogen and does not require nitrogenous fertilsers.

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Answer 2

Answer:

Rhizobium bacteria are found in the root nodules of legume plants. These bacteria have the capacity to transform nitrogen from the atmosphere into a form that plants can use.

Explanation

Synthetic ammonia, nitric acid, ammonium nitrate, and urea are all produced in the nitrogenous fertiliser. Nitrogen-based fertilisers assist crop plants in growing quicker and producing more crops.

A leguminous plant is a set of flowering plants with vegetables or edibles growing from the ground knobs that improve nitrogen-rich material's capacity to thrive. Acacia, peas, clover, beans, and gorse are other examples.

Rhizobium, a nitrogen-fixing bacterium, has a unique interaction with legume plants. Legumes provide a relatively low-cost means of restoring nitrogen in the soil by organically fixing nitrogen levels in the soil, benefiting soil fertility and increasing crop yields.