Question
Types of Biofertilizers
Symbiotic Nitrogen-Fixing Bacteria: Rhizobium is a vital symbiotic nitrogen-fixing bacteria that form a mutually beneficial relationship with plants, providing fixed nitrogen to them.
Loose Association of Nitrogen-Fixing Bacteria: Azospirillum is a type of nitrogen-fixing bacteria that live around the roots of higher plants without forming an intimate relationship with the plants. They collect plant exudates for food in a process known as associative mutualism.
Symbiotic Nitrogen-Fixing Cyanobacteria: Blue-Green algae or Cyanobacteria form symbiotic associations with various plants like liverworts, cycad roots, ferns, and lichens. Anabaena, found in fern leaf cavities, is responsible for nitrogen fixation.
Free-Living Nitrogen-Fixing Bacteria: These are free-living soil bacteria that perform nitrogen fixation independently. Examples include Clostridium beijerinckii and Azotobacter.
Among these types, Rhizobium and Azospirillum are the most widely used biofertilizers.
Symbiotic Nitrogen-Fixing Bacteria: Rhizobium is a vital symbiotic nitrogen-fixing bacteria that form a mutually beneficial relationship with plants, providing fixed nitrogen to them.
Loose Association of Nitrogen-Fixing Bacteria: Azospirillum is a type of nitrogen-fixing bacteria that live around the roots of higher plants without forming an intimate relationship with the plants. They collect plant exudates for food in a process known as associative mutualism.
Symbiotic Nitrogen-Fixing Cyanobacteria: Blue-Green algae or Cyanobacteria form symbiotic associations with various plants like liverworts, cycad roots, ferns, and lichens. Anabaena, found in fern leaf cavities, is responsible for nitrogen fixation.
Free-Living Nitrogen-Fixing Bacteria: These are free-living soil bacteria that perform nitrogen fixation independently. Examples include Clostridium beijerinckii and Azotobacter.
Among these types, Rhizobium and Azospirillum are the most widely used biofertilizers.
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