Advertisements
Advertisements
प्रश्न
Name the aquatic fern commonly used in paddy fields as a biofertilizer.
Advertisements
उत्तर
The aquatic fern commonly used in paddy fields as biofertilizer is Azolla.
APPEARS IN
संबंधित प्रश्न
Your advice is sought to improve the nitrogen content of the soil to be used for cultivation of a non-leguminous terrestrial crop.
- Recommend two microbes that can enrich the soil with nitrogen.
- Why do leguminous crops not require such enrichment of the soil?
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 |
The biological agent which is used to kill or check proliferation of disease causing agents is called ____________.
Mycorrhiza does not help the host plant in ______.
Why are blue green algae not popular as biofertilisers?
How many of the following are the symbiotic nitrogen fixing micro-organisms?
Rhizobium, Anabaena, Frankia, Azotobacter, Nostoc, Clostridium, Beijerinckia, Klebsiella
Which of the following bacteria do not solubilize the insoluble rock phosphate?
Which of the following organisms is a nitrogen-fixing bacterium that forms a symbiotic association with leguminous plants?
How do biofertilizers differ from chemical fertilizers in their effect on soil microorganisms?
Which organisms are classified as nitrogen-fixing microbes that convert atmospheric nitrogen into usable forms?
