What are biofertilizers?

Biofertilizers and Their Types

Flashcard
•
Biology
•
University
•
Hard
masakala tzudir
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14 questions
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1.
FLASHCARD QUESTION
Front
Back
Biofertilizers add nutrients to the soil through natural processes such as fixing atmospheric nitrogen, solubilizing phosphorus, and enhancing plant growth.
2.
FLASHCARD QUESTION
Front
Name the main categories of biofertilizers.
Back
1. Nitrogen-fixing biofertilizers 2. Phosphorus Solubilising Microorganisms (PSM) 3. Phosphate mobilizing microbes: Mycorrhizae 4. Mineral-Solubilizing Biofertilizers 5. Plant Growth Promoting Rhizobacteria (PGPR)
3.
FLASHCARD QUESTION
Front
What are nitrogen-fixing biofertilizers?
Back
Nitrogen-fixing biofertilizers are organisms that can fix atmospheric nitrogen, making it available to plants.
4.
FLASHCARD QUESTION
Front
What are free-living nitrogen-fixing bacteria?
Back
Free-living nitrogen-fixing bacteria, such as Azotobacter and Clostridium, live freely in the soil and fix nitrogen.
5.
FLASHCARD QUESTION
Front
What is associative symbiosis in nitrogen-fixing bacteria?
Back
Associative symbiosis refers to bacteria that live both inside and outside the root, forming a symbiotic relationship with the host plant.
6.
FLASHCARD QUESTION
Front
What are symbiotic nitrogen-fixing bacteria?
Back
Symbiotic nitrogen-fixing bacteria, like Rhizobium, develop a mutually beneficial relationship with leguminous plants, providing them with fixed nitrogen.
7.
FLASHCARD QUESTION
Front
What role do Rhizobium play in nitrogen fixation?
Back
Rhizobium forms nodules on the roots of legume plants, where they fix atmospheric nitrogen in exchange for shelter and food.
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