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प्रश्न
Give two examples of biofertilizer.
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उत्तर
Two examples of biofertilizers are as follows:
- Rhizobium - nitrogen-fixing bacteria forming root nodules in legumes.
- Azotobacter - free-living nitrogen-fixing bacteria in soil.
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संबंधित प्रश्न
Find out the role of microbes in the following:
Soil
Give the meaning of the Nif gene.
Define biofertilizers. Give two types of fungal biofertilizers
Identify free-living bacterial bio-fertilizer.
How does the activity of each one of the following help in organic farming?
Cyanobacteria
Which one of the following is a free-living bacterial biofertilizer?
State any three benefits of mycorrhiza.
State any three benefits of Biofertilizers.
identify the plants with which Anabaena, is associated.
Which of the following is a free-floating aquatic fern?
Identify the CORRECT statement regarding Mycorrhiza.
From the following pairs of microbes, identify the pair that has both the microbes that can be used as Biofertilizers.
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 |
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Mycorrhiza forms symbiotic association with ____________ of higher plants.
Blue green algae are used as bio fertilizers because they ____________.
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 of the following symbiotic microorganisms is nitrogen-fixing?
Which one of the following is not a biofertilizer?
Why are blue green algae not popular as biofertilisers?
Farmers are often suggested to use the following organism in their crop land so as to improve the soil fertility. Explain.
Rhizobium
Azolla is used as biofertiliser because it ______.
Aspergillus niger is used to manufacture
