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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
Microbes can be used to decrease the use of chemical fertilisers and pesticides. Explain how this can be accomplished.
What are 'biofertilizers'? Explain them with suitable examples.
Give the meaning of the Nif gene.
Explain the interrelationship between organic farming and biofertilizers, with the help of any three suitable examples.
State any three benefits of mycorrhiza.
State any three benefits of Biofertilizers.
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.
By application of ____________ yield of paddy field can be increased.
Which of the following is/are symbiotic nitrogen fixing microbe?
VAM stands for ______.
Which of the following symbiotic microorganisms is nitrogen-fixing?
Glomus is a ______.
Mycorrhiza does not help the host plant in ______.
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
Aspergillus niger is used to manufacture
Name the microorganisms involved in the production of Roquefort cheese, Camembert cheese and Swiss cheese.
