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    Question

    Which of the following nitrogenous fertilizer is used as

    a nitrogen fertilizer and weed killer in Onion crop?
    A Urea Correct Answer Incorrect Answer
    B Super sulfate lime Correct Answer Incorrect Answer
    C Calcium cyanamide Correct Answer Incorrect Answer
    D None of these Correct Answer Incorrect Answer

    Solution

    Calcium cyanamide (option c) is a nitrogenous fertilizer that can also be used as a weed killer in onion crops. When applied to the soil, it breaks down to release nitrogen, which provides a source of nutrients for the onion plants.

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