Question

    Which one of the following is a neutral fertiliser? 

    A Urea Correct Answer Incorrect Answer
    B Ammonium sulphate Correct Answer Incorrect Answer
    C Single super phosphate Correct Answer Incorrect Answer
    D Calcium ammonium nitrate Correct Answer Incorrect Answer

    Solution

    CAN - Calcium Ammonium Nitrate can be considered as near-neutral in its effect on soil pH - and therefore can be used on soils that have a low pH without lowering further.

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