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प्रश्न
What are 'biofertilizers'? Explain them with suitable examples.
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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
How do biofertilisers enrich the fertility of the soil?
Name the aquatic fern commonly used in paddy fields as a biofertilizer.
Define biofertilizers. Give two types of fungal biofertilizers
______ are nitrogen fixing micro-organisms.
From the following pairs of microbes, identify the pair that has both the microbes that can be used as Biofertilizers.
The biological agent which is used to kill or check proliferation of disease causing agents is called ____________.
Biofertilizers are
Why are blue green algae not popular as biofertilisers?
- Give an example of a genus of fungi that forms mycorhizal association with plants.
- How does the plant derive benefits from this association?
Aspergillus niger is used to manufacture
