Question

Nitrogen is essential nutrition for a plant growth but farmers who cultivate pulse crops like green gram black gram at sector do not apply nitrogenous fertilizers during cultivation

Answer 1

Answer:

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Explanation:

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 because of following reason:

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1. Leguminous plants like green gram, bengal gram,black gram contain nitrogen fixing " RHIZOBIUM " bacteria which convert nitrogen gas of air into nitrogen compounds which can be used by plants for their compounds

2. The nitrogen fixing Rhizohium bacteria live in the root nodules of leguminous plants.

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Answer 2

Answer:

Nitrogen is an essential nutrient for plants but while growing leguminous plants (or crops) like black gram, one does not need to apply nitrogenous fertilizers because these plants have a symbiotic relationship with nitrogen fixing bacteria like rhizobium which fix atmospheric nitrogen into the soil for the plant to utilize.

Explanation:

Basically these leguminous plants have special bacteria in their roots that convert gaseous nitrogen into plant usable nitrogen for the plant in exchange of nutrition.. This is a symbiotic relationship between the plant and the bacteria.