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प्रश्न
State any three benefits of Biofertilizers.
Write the benefits of biofertilizer.
उत्तर
- Low cost and can be used by marginal farmers.
- Free from pollution hazards.
- Increase soil fertility.
- BGA as biofertilizers secret growth promoting substances, organic acids, proteins and vitamins.
- Azotobacter supply nitrogen and antibiotics in the soil.
- Biofertilizers increase physico-chemical properties of soil- like texture, structure, pH, water holding capacity of soil by providing nutrients and organic matter.
Notes
Students should refer to the answer according to their questions.
संबंधित प्रश्न
How does the activity of each one of the following help in organic farming?
Cyanobacteria
Name any two bacterial biofertilizers.
Define estuary.
Mycorrhiza is a______ which forms a symbiotic association with the underground parts like rhizomes and root of higher plants.
Which of the following is/are symbiotic nitrogen fixing microbe?
Anabaena forms symbiotic relationship coralloid roots of ______.
Blue green algae are used as bio fertilizers because they ____________.
Which of the following symbiotic microorganisms is nitrogen-fixing?
Which one of the following is NOT a nitrogen-fixing organism?
Match the pairs:
| Column A | Column B | ||
| (i) | Compost making biofertilizer |
(a) | Azotobacter |
| (ii) | N2 fixing biofertilizer | (b) | Mycorrhiza |
| (iii) | Fungal biofertilizer | (c) | Agrobacterium |
| (iv) | Phosphate solubilizing biofertilizer |
(d) | Actinobocteria |
