Home
Class 12
BIOLOGY
Biofertilisers...

Biofertilisers

A

Increase dependence on chemical fertilisers

B

Are organisms that enrich the nutrient quality of soil

C

Include potash, phosphatic and nitrogenous organic and chemical compounds

D

Are used regularly in the fields to deplete soil nutrients

Text Solution

Verified by Experts

The correct Answer is:
B
Biofertilizers are organisms which fix atmospheric nitrogen that enrich the nutrient quality of soil.
Promotional Banner

Topper's Solved these Questions

  • MICROBES IN HUMAN WELFARE

    VMC MODULES ENGLISH|Exercise PRACTICE EXERCISE - 1|3 Videos

  • MICROBES IN HUMAN WELFARE

    VMC MODULES ENGLISH|Exercise PRACTICE EXERCISE - 2|4 Videos

  • MICROBES IN HUMAN WELFARE

    VMC MODULES ENGLISH|Exercise IN - CHAPTER EXERCISE - B|19 Videos

  • HUMAN REPRODUCTION

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-C|10 Videos

  • MINERAL NURTITION IN PLANTS

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-D|10 Videos

Similar Questions

Explore conceptually related problems

Biofertiliser is

Consider the following four statemets (A - D) related to organic farming and select the correct option stating which ones are true (T) and which ones are false (F). The statements: (A) Produces food crops rich in lipids, vitamins and iron (B) Users biofertilisers which increases soil fertility (C ) There is more use of chemical fertilisers and pesticides (D) Raising unpolluted crops throuth the use of bacteria, fungi and cyanobacteria

Which of the following statements is/are incorrect ? (i) Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial habitats. (ii) Anabaena, Nostoc and Oscillatoria are photosynthetic N_(2) -fixing cyanobacteria. (iii) Tolypothrix (BGA) can increase rice production by about 20% (iv) BGA add organic matter to the soil and increase its fertility. (v) In our country, biofertilisers are not available commercially in the markets for farmers.

Give one example of biofertiliser

Why is Nostoc used as a biofertiliser?

Which one is a biofertiliser ?

Which one of the following is not a biofertiliser?

Which one is used as a biofertiliser?

Which one is used as a biofertiliser?

Which of the following is a non-symbiotic biofertiliser ?

VMC MODULES ENGLISH-MICROBES IN HUMAN WELFARE-SOLVED EXAMPLES
  1. Microbial colonies

    Text Solution

    |

  2. What is the beneficial role of LAB in our stomach?

    Text Solution

    |

  3. Which of the following is traditional drink of some parts of southem I...

    Text Solution

    |

  4. Production of beverages at industrial scale requires growing microbes ...

    Text Solution

    |

  5. Find the odd one w.r.t. distilled alcoholic beverages

    Text Solution

    |

  6. The chemicals which are "pro-life" with reference to human beings

    Text Solution

    |

  7. Which of the following microbe is the source of first antibiotic?

    Text Solution

    |

  8. The first antibiotic was discovered accidently by A while working on B...

    Text Solution

    |

  9. Commercial extraction of penicillin was done by

    Text Solution

    |

  10. The product of Monascus purpureus has been commercialised as

    Text Solution

    |

  11. are produced by yeast and act by competitively inhibiting the enzyme r...

    Text Solution

    |

  12. Treatment of waste-water is done by the

    Text Solution

    |

  13. What happens to activated sludge?

    Text Solution

    |

  14. The bacterium responsible for biogas production are collectively calle...

    Text Solution

    |

  15. The technology of biogas production from cow dung was developed in Ind...

    Text Solution

    |

  16. The ladybird beetle and dragonflies are useful to get rid of and res...

    Text Solution

    |

  17. The effective biocontrol agents of serveral plant pathogens are specie...

    Text Solution

    |

  18. Biofertilisers

    Text Solution

    |

  19. Read the following four satements (A -D) about certain mistakes in two...

    Text Solution

    |

  20. Fermented beverage product without distillation is :

    Text Solution

    |