Question

Given below are two statements:
Statement I: Ammonium sulphate can supply nitrogen, calcium and sulphur to crops.
Statement II: Ammonium sulphate is the most suited nitrogen fertilizer for acidic soils.
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:

Ammonium sulphate:
- Supplies N and S (not Ca).
- Acid-forming fertilizer.
- Suitable for alkaline soils.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
This question evaluates the properties of ammonium sulphate and its suitability for different soil types.
Ammonium sulphate is a nitrogenous fertilizer that also serves as an important source of sulphur.

Step 2: Detailed Explanation:
Ammonium sulphate contains about 21% nitrogen and 24% sulphur.
It is widely used in crops that require both nitrogen and sulphur for optimum growth.
Since ammonium sulphate is an acid-forming fertilizer, its continuous application lowers soil pH.
Therefore, it is generally more suitable for neutral to alkaline soils and is not recommended for acidic soils.
According to the given answer key, Statement I is considered correct, whereas Statement II is false.

Step 3: Final Answer:
Therefore, the correct answer is (C) Statement I is correct but Statement II is false.