Which one of the following is not used as biofertilizer?
A
Bacillus thuringiensis
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B
Anabaena
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C
Nostoc
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D
Rhizobium
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Solution
The correct option is ABacillus thuringiensis A. Bacillus thuringiensis
EXPLANATION: Bacillus thuringiensis is a gram-positive spore-forming soil microorganism. The toxin produced by Bacillus thuringiensis has been used as an insecticide spray since 1920s and is commonly used in organic farming.