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Question
Which of the following are bacterial biofertilisers?
Which of the following are bacterial biofertilisers?
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Solution
The correct options are
A Rhizobium
B Azotobacter
D Azospirillum
Microorganisms which help increase the soil fertility are called biofertilisers. The presence of these useful bacteria enhances the soil nutrients which are essential for plant growth. A few examples of bacterial biofertilisers are Rhizobium, Azotobacter and Azospirillum. Azolla is an aquatic plant that has a symbiotic relationship with a bacteria called Anabaena. When added to the soil, this association also increases soil fertility.
A
Rhizobium
B
Azotobacter
D
Azospirillum
Microorganisms which help increase the soil fertility are called biofertilisers. The presence of these useful bacteria enhances the soil nutrients which are essential for plant growth. A few examples of bacterial biofertilisers are Rhizobium, Azotobacter and Azospirillum. Azolla is an aquatic plant that has a symbiotic relationship with a bacteria called Anabaena. When added to the soil, this association also increases soil fertility.
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