Nitrogen is an essential nutrient for plant growth. However farmers who cultivate pulse crops like green gram, Bengal gram, and black gram do not apply nitrogenous fertilisers during cultivation. Why?

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Solution

Roots of pulses (leguminous plants) have a symbiotic association with a soil bacterium known as Rhizobium which fixes atmospheric nitrogen into the soil.

Hence, farmers need not use nitrogenous fertilisers.

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Nitrogen is an essential nutrient for plant growth. However farmers who cultivate pulse crops like green gram, Bengal gram, and black gram do not apply nitrogenous fertilisers during cultivation. Why?

Roots of pulses (leguminous plants) have a symbiotic association with a soil bacterium known as Rhizobium which fixes atmospheric nitrogen into the soil. ​ Hence, farmers need not use nitrogenous fertilisers.​

Roots of pulses (leguminous plants) have a symbiotic association with a soil bacterium known as Rhizobium which fixes atmospheric nitrogen into the soil.

Hence, farmers need not use nitrogenous fertilisers.