Consider the following organisms : 1. Agaricus 2. Nostoc 3. Spirogyra Which of the above is/are used as biofertilizer/ biofertilizers?
Asked in UPSC IAS 2013 · Topic: Biofertilizers (Nitrogen-fixing Biofertilizers: Non-symbiotic/Free-living (e.g., Azotobacter, Azospirillum, Cyanobacteria/BGA))
More Biology questions
- Agaricus is a genus of fungi (mushrooms) and is not generally used as a biofertilizer. Some fungi like mycorrhizal fungi are used as biofertilizers as they enhance nutrient uptake, but Agaricus is not primarily used for this purpose. 2. Nostoc is a genus of cyanobacteria (blue-green algae) known for its ability to fix atmospheric nitrogen. It is widely used as a biofertilizer, especially in paddy fields. 3. Spirogyra is a genus of filamentous green algae. It is photosynthetic but does not fix nitrogen and is not used as a biofertilizer. 30. Which of the following is a source of biofertilizer?
- Blue green algae is used to supply nitrogen to
- Azolla is often used as biofertilizer, because it is associated with
- Which of the following micro organisms are used as biofertilizer?
- Which one of the following organisms can serve as a biofertilizer for rice crop?
- Azolla-Anabaena Bio-fertilizer is used for crop:
- The nitrogen fixation in a paddy field is brought about by
- The root nodules of Casuarina which are capable of symbiotic nitrogen fixation contain the microbe
