How do biofertilisers enrich the fertili | Class 12 Biology Chapter Microbes in Human Welfare, Microbes in Human Welfare NCERT Solutions

Question: How do biofertilisers enrich the fertility of the soil?

Answer:

Bio-fertilizers are living organisms which help in increasing the fertility of soil. It involves the selection of beneficial micro-organisms that help in improving plant growth through the supply of plant nutrients. These are introduced to seeds, roots, or soil to mobilize the availability of nutrients by their biological activity. Thus, they are extremely beneficial in enriching the soil with organic nutrients. Many species of bacteria and cyanobacteria have the ability to fix free atmospheric nitrogen. Rhizobium is a symbiotic bacteria found in the root nodules of leguminous plants. Azospirillium and Azotobocter are free living nitrogen-fixing bacteria, whereas Anabena, Nostoc, and Oscillitoria are examples of nitrogen-fixing cyanobacteria. Bio-fertilizers are cost effective and eco-friendly.

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Comments

Shweta
2021-02-28 21:47:27

Thanks for your help ð

Kahkashan khan
2019-10-30 20:02:53

Thanks

Ubaid
2019-09-16 17:36:22

Thankyou so much for helping us

Ubaid
2019-09-16 17:35:53

Thank u so much for helping us

Souvik
2019-01-30 09:12:05

Good

Prabhat
2019-01-22 22:53:34

Thanks a lot

akanksha
2019-01-16 08:03:23

nice

Vaishnavi
2018-12-29 09:52:54

Thanks alot

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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 15: How do biofertilisers enrich the fertility of the soil?....

How do biofertilisers enrich the fertili | Class 12 Biology Chapter Microbes in Human Welfare, Microbes in Human Welfare NCERT Solutions

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