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    Question

    Phosphorus uptake in alkali soil is in the form of _____

    A FePO4.2H2O Correct Answer Incorrect Answer
    B AlPO4.2H2O Correct Answer Incorrect Answer
    C HPO42– Correct Answer Incorrect Answer
    D H3PO4 Correct Answer Incorrect Answer

    Solution

    With increase in pH above 7.2, HPO4 2- concentration increases up to pH 7.8. 

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