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    Question

    Main function of bio fertilizer is:

    A To increase chemical process Correct Answer Incorrect Answer
    B To increase physiological process Correct Answer Incorrect Answer
    C To increase biological process Correct Answer Incorrect Answer
    D To increase photosynthesis process Correct Answer Incorrect Answer

    Solution

    A biofertilizer is a substance which contains living micro-organisms 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 nutrients to the host plant. Biofertilizers such asĀ Rhizobium,Ā Azotobacter,Ā AzospiriliumĀ andĀ blue green algaeĀ (BGA) have been in use a long time.

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