Question

Given below are two statements:
Statement I: Zinc deficiency is common on calcareous soil.
Statement II: Zinc availability to crops is higher in alkaline soil.
In light of the above statements, choose the most appropriate answer from the options given below:

• A. Both Statement I and Statement II are true
• B. Both Statement I and Statement II are false
• C. Statement I is correct but Statement II is false
• D. Statement I is incorrect but Statement II is true

Hint:

Zinc:
- Deficiency common in calcareous and alkaline soils.
- Availability is higher in acidic soils (pH 5-6).
- Management: Zinc sulfate application.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:
This question tests knowledge of micronutrient availability in different soil types.

Step 2: Detailed Explanation:
Zinc deficiency is common in calcareous soils (high calcium carbonate content) because zinc is precipitated as zinc carbonate.
Zinc availability is lower in alkaline soils (pH > 8) because zinc forms insoluble compounds.
Thus, Statement I is correct, but Statement II is false (zinc availability is lower, not higher, in alkaline soils).

Step 3: Final Answer:
Thus, Statement I is correct but Statement II is false, which corresponds to option (C).
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