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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.
APPEARS IN
संबंधित प्रश्न
Your advice is sought to improve the nitrogen content of the soil to be used for cultivation of a non-leguminous terrestrial crop.
- Recommend two microbes that can enrich the soil with nitrogen.
- Why do leguminous crops not require such enrichment of the soil?
Explain the interrelationship between organic farming and biofertilizers, with the help of any three suitable examples.
Name any two bacterial biofertilizers.
State any three benefits of mycorrhiza.
From the following pairs of microbes, identify the pair that has both the microbes that can be used as Biofertilizers.
Which of the following symbiotic microorganisms is nitrogen-fixing?
Glomus is a ______.
Farmers are often suggested to use the following organism in their crop land so as to improve the soil fertility. Explain.
Anabaena
What is the primary outcome of the Legume–Rhizobium symbiosis in terms of soil enrichment?
Which of the following is NOT a primary benefit of using biofertilizers in agriculture?
