NEET 2011 Biology question

An organism used as a biofertilizer for raising soyabean crops is :

(1)Azotobacter
(2)Azospirillum
(3)RhizobiumCorrect
(4)Nostoc

Answer: (3)

Solution

Soyabean is a legume, and its root nodules harbour the symbiotic nitrogen-fixing bacterium Rhizobium (Bradyrhizobium japonicum for soyabean), which is therefore the biofertilizer used for

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Question ID VK-090860