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    "Khaira disease" of rice is caused by deficiency of:
    Question

    "Khaira disease" of rice is caused by deficiency of:

    A.

    Nitrogen

    B.

    Zinc

    C.

    Potash

    D.

    Phosphorus

    Correct option is B


    Khaira disease in rice is caused by zinc deficiency. It leads to chlorosis (yellowing) of leaves, stunted growth, and poor tillering. Zinc application (e.g., ZnSO₄) corrects this deficiency.

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