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प्रश्न
What are 'biofertilizers'? Explain them with suitable examples.
उत्तर
Biofertilizers: The biofertilizers are nitrogen fixing microbes or fungi which enrich the soil with nutrients.
There are 3 major types of biofertilizers i.e. bacterial biofertilizers, cyanobacterial biofertilizers and fungal biofertilizers.
Examples of biofertilizers:
- Nitrogen-fixing symbiotic bacterial biofertilizer - Rhizobium in root nodule of leguminous plants.
- Nitrogen-fixing symbiotic cyanobacterial biofertilizers - Anabaena azollae in Azolla.
- Nitrogen-fixing non-symbiotic cyanobacterial biofertilizers - Nostoc, Anabaena.
- Mycorrhizal Fungal biofertilizer - Ectotrophic mycorrhiza and Endotrophic mycorrhiza - VAM.
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संबंधित प्रश्न
Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.
What is a heterocyst?
Define biofertilizers. Give two types of fungal biofertilizers
Which of the following is/are symbiotic nitrogen fixing microbe?
Anabaena forms symbiotic relationship coralloid roots of ______.
In plant breeding, biofortification is a method ____________.
The biological agent which is used to kill or check proliferation of disease causing agents is called ____________.
Which one of the following is not a nitrogen-fixing organism?
How do mycorrhizal fungi help the plants harbouring them?
What are biofertilisers? Give two examples.
