Fertility of soil is increased by

Nitrogen-fixing bacteria

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Denitrifying bacteria

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Methanogens

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All of the above

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Solution

The correct option is A Nitrogen-fixing bacteria
Free living and symbiotic nitrogen fixing bacteria fix atmospheric inert nitrogen into biologically useful ammonia, thereby adding nitrogen to soil and increasing its fertility.

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Similar questions

What happens when we inoculate rhizobium in wheat field?

a)No increase in production (nitrogen content of soil remains the same)

b)A lot of increase in the production (nitrogen content of soil increase)

c)fertility of soil decrease

d) fertility of soil increase

OscillatoriaAnabaena and Nostoc are ________ which fix atmospheric nitrogen and improve soil fertility.

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