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प्रश्न
Why are blue green algae not popular as biofertilisers?
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उत्तर
Blue green algae are not popular as biofertilisers because they causes algal bloom in polluted water bodies.
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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.
How do biofertilisers enrich the fertility of the soil?
What is a heterocyst?
Give the meaning of the Nif gene.
Name the aquatic fern commonly used in paddy fields as a biofertilizer.
How does the application of cyanobacteria help improve agricultural output?
Define estuary.
Match the column A with B and rewrite correct pairs.
| A | B | |
| i. | Symbiotic N2 fixing bacteria | VAM |
| ii. | Free-living N2 fixing bacteria | Rhizobium |
| iii. | Phosphate solubilizer | Nostoc |
| iv. | Endomycorrhizae | Microccocus |
Identify the CORRECT statement regarding Mycorrhiza.
Mycorrhiza is a______ which forms a symbiotic association with the underground parts like rhizomes and root of higher plants.
Match the Column I (Organisms) with the Column II (Products they produce) and select the correct option.
| Column I | Column II | ||
| i. | Lactobacillus | p. | Cheese |
| ii. | Saccharomyces cerevisiae | q. | Curd |
| iii. | Aspergillus niger | r. | Citric Acid |
| iv | Acetobacter aceti | s. | Bread |
| t. | Acetic Acid |
VAM stands for ______.
VAM is a type of ______
Which of the following symbiotic microorganisms is nitrogen-fixing?
Which one of the following is not a biofertilizer?
Biofertilizers are
How do mycorrhizal fungi help the plants harbouring them?
Give two examples of biofertilizer.
- 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
