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Biofertilisers are...

Biofertilisers are

A

some bacteria and cyanobacteria

B

fertilisers formed by ploughing in barseem

C

fertilisers obtained by decay of dead organisms

D

fertilisers prepared by mixing cattle dung with crop residues.

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The correct Answer is:
A
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NCERT FINGERTIPS ENGLISH-MICROBES IN HUMAN WELFARE-Microbes In Human Welfare
  1. Living organisms used to enrich the nutrient quality of the soil are c...

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  2. Biofertilisers are prganisms that enrich the nutrient quality of the s...

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  3. Biofertilisers are

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  4. Biofertilisers are the living organisms which

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  5. Unicellular symbiotic organisms improve yield of legumes by

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  6. Match column I with column II and select the correct answer from the g...

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  7. Which one of the following can be used as biofertiliser in cotton fiel...

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  8. The symbiotic association between fungi and roots of higher plants is ...

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  9. Which one of the following microorganisms forms symbiotic assocation w...

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  10. Which of the following statements is not correct regarding mycorrhiza ...

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  11. Which one of the following pairs is correctly matched?

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  12. Match column I with column II and select the correct answer from the g...

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  13. Cyanobacteria are

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  14. A nitrogen fixing microbe associated with the fern Azolla in rice fiel...

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  15. Azolla pinnata has been found to be an important biofertiliser for pad...

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  16. Which of the following is widely used as a successful biofertiliser in...

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  17. Study the following statements and select the correct ones (i) Metha...

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  18. Which of the following statements is/are correct ?

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  19. Which of the following options includes biofertilisers ?

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  20. Which of the following is a non-symbiotic biofertiliser ?

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