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प्रश्न
Find out the role of microbes in the following:
Soil
उत्तर
Microbes are highly useful in maintaining and restoring soil fertility. The fertility of the soil is determined not only by its chemical structure but also by the number and quality of beneficial bacteria present. Furthermore, if the soil's composition is inadequate and fertility is low, biologically derived elements are added to improve and maintain fertility. These materials are classified into two basic categories: waste and biofertilisers. Wastes are classified into three types: farmyard waste, compost, and green waste. Farmyard waste is the oldest dung known to human beings, consisting of farm animal excrement and plant remains, among other things, that are allowed to partially decompose with the help of soil micro-organisms. These microbes degrade complex organic waste into a dark, amorphous substance known as sludge, which plants can easily consume. Fertiliser dissolves the soil, improves aeration, and makes it grow better. Biofertilisers are micro-organisms that restore soil nutrients while maximising ecological advantages and reducing environmental dangers.
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संबंधित प्रश्न
How do biofertilisers enrich the fertility of the soil?
What are 'biofertilizers'? Explain them with suitable examples.
What is a heterocyst?
How does the application of cyanobacteria help improve agricultural output?
Your advice is sought to improve the nitrogen content of the soil to be used for cultivation of a non-leguminous terrestrial crop.
1) Recommend two microbes that can enrich the soil with nitrogen
2) Why do leguminous crops not require such enrichment of the soil?
How does the activity of each one of the following help in organic farming?
Cyanobacteria
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 plants with which Anabaena, is associated.
VAM stands for ______.
Which of the following statements are CORRECT regarding Anabaena and Frankia?
Anabaena forms symbiotic relationship coralloid roots of ______.
Which one of the following is not a biofertilizer?
Some blue-green algae are used as bio fertilisers of their ______.
Glomus is a ______.
Biofertilizers are
- 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
