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      Question

      The pH of soil for orange cultivation should

      be
      A 6.5 to 7.5 Correct Answer Incorrect Answer
      B more than 7.5 Correct Answer Incorrect Answer
      C less than 6.5 Correct Answer Incorrect Answer
      D above 10 Correct Answer Incorrect Answer

      Solution

      1. Physiological Basis:  a. Optimal nutrient availability (Fe, Zn, Mn)  b. 5.5-6.5 for Nagpur oranges  c. 6.0-7.0 for Kinnow 2. Amendment Practices:  a. Lime application if pH <5.5  b. Sulfur if pH >7.5

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