Question

    Fertilizer insoluble in water and citric acid

    A Rock phosphate Correct Answer Incorrect Answer
    B DAP Correct Answer Incorrect Answer
    C Basic Slag Correct Answer Incorrect Answer
    D Both a & c Correct Answer Incorrect Answer

    Solution

    Rock phosphate is a phosphatic fertilizers which contains phosphoric acid which is neither soluble in water nor in acid and is suitable for strongly acidic or organic soil. Other examples are Raw bone meal: 2-4.5 % P2O5 and Steamed bone meal: 22% P2O5

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