Nitrogen is an essential nutrient for plant growth. When farmers cultivate pulse crops like green gram, bengal gram, black gram, etc. do not apply nitrogenous fertilisers during cultivation. Why?

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Solution

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

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

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

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(a) Photoperiod affect the___.

(b) Kharif crops are cultivated from___ to ___.

(d) Paddy, maize, green gram and black gram are ___ crops.

(e) Wheat, gram, pea, mustard are ___ crops.

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