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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
What are 'biofertilizers'? Explain them with suitable examples.
Give the meaning of the Nif gene.
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?
Identify free-living bacterial bio-fertilizer.
Which one of the following is a free-living bacterial biofertilizer?
State any three benefits of Biofertilizers.
______ are nitrogen fixing micro-organisms.
Which of the following is a free-floating aquatic fern?
Identify the CORRECT statement regarding Mycorrhiza.
By application of ____________ yield of paddy field can be increased.
Which of the following is/are symbiotic nitrogen fixing microbe?
Which of the following statements are CORRECT regarding Anabaena and Frankia?
Mycorrhiza forms symbiotic association with ____________ of higher plants.
In plant breeding, biofortification is a method ____________.
The biological agent which is used to kill or check proliferation of disease causing agents is called ____________.
Which one of the following is not a nitrogen-fixing organism?
Farmers are often suggested to use the following organism in their crop land so as to improve the soil fertility. Explain.
Anabaena
- Give an example of a genus of fungi that forms mycorhizal association with plants.
- How does the plant derive benefits from this association?
Name the microorganisms involved in the production of Roquefort cheese, Camembert cheese and Swiss cheese.
