What are biofertilizers ? Name any two important biofertilizers which can be considered for agro - based industries .
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A biofertilizer is a substance which contains living microorganisms which, when applied to seeds, plant surfaces or soil , colonize the rhizosphere or the interior of the plant and promotes growth by increasing the supply or availability of primary nutients to the host plants. Azotobacter and Rhizobium are the 2 important biofertilizers considered for agro - based industries
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