- Azolla is a symbiotic host for nitrogen-fixing cyanobacteria (Anabaena azollae). - Nitrogen fixation makes Azolla a valuable biofertilizer, especially in agriculture. - Duckweed can also be used as a source of organic matter and nutrients.
Duckweed or Azolla is used as a/an
Asked in UPSC Geoscientist 2023 · Topic: Biofertilizers (Classification of Biofertilizers based on microbial type and function)
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