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प्रश्न
Why are cyanobacteria considered useful in paddy fields?
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उत्तर
Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial environments many of which can fix atmospheric nitrogen e.g. Anabaena, Nostoc, Oscillatoria, etc. In paddy fields, cyanobacteria serve as an important biofertiliser. Blue-green algae also add organic matter to the soil and increase its fertility.
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संबंधित प्रश्न
How does the application of cyanobacteria help improve agricultural output?
Define biofertilizers. Give two types of fungal biofertilizers
Define estuary.
State any three benefits of Biofertilizers.
From the following pairs of microbes, identify the pair that has both the microbes that can be used as Biofertilizers.
Which of the following is/are symbiotic nitrogen fixing microbe?
Which of the following statements are CORRECT regarding Anabaena and Frankia?
In plant breeding, biofortification is a method ____________.
VAM is a type of ______
Which of the following symbiotic microorganisms is nitrogen-fixing?
An organism used as a biofertiliser for raising soyabean crop prediction is:
Which one of the following is not a biofertilizer?
Some blue-green algae are used as bio fertilisers of their ______.
Biofertilizers are
Mycorrhiza does not help the host plant in ______.
How do mycorrhizal fungi help the plants harbouring them?
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 |
Which one of the following statement is correctly matched?
Aspergillus niger is used to manufacture
