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?

Farmers who cultivate pulse crops like green gram, Bengal gram, black gram, etc. do not apply nitrogenous fertilizers during cultivation because these crops have rhizobium bacteria. Roots of pulses (leguminous plants) have a symbiotic association with a bacterium called Rhizobium which fixes nitrogen. Hence, farmers need not use nitrogenous fertilisers.

  • Fertilizers are chemical substances supplied to the crops to increase their productivity.
  • These are used by the farmers daily to increase the crop yield.
  • Nitrogen fertilizers contain nitrogen necessary for the development of crops.
  • Nitrogen is the main constituent of chlorophyll that maintains a balance in the process of photosynthesis.
  • It is also a part of amino acids in plants and constitutes protein.
  • Nitrogen fertilizers improve the production and quality of agricultural products.

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