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    Question

    Which of the following is/are a biofertilizer used to

    add, conserve and stimulate phosphorus as a plant nutrient in the soil? 1. Azospirillum 2. Mycorrhizal fungi 3. Azotobacter Select the correct answer using the codes given below.
    A Only 2 Correct Answer Incorrect Answer
    B Only 2 and 3 Correct Answer Incorrect Answer
    C Only 1 and 2 Correct Answer Incorrect Answer
    D Only 1 Correct Answer Incorrect Answer

    Solution

    The correct answer is B

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