Urea is a better fertilizer than ammonium sulphate because `:`

Options

A. It has greater percentage of nitrogen
B. It is more soluble
C. It is weak basic
D. It does not produce acidity in soil

Answer

To determine why urea is a better fertilizer than ammonium sulfate, we can analyze the key components and characteristics of both fertilizers step by step.

### Step-by-Step Solution:

1. **Understanding the Composition of Urea and Ammonium Sulfate**:
- Urea has the chemical formula NH2CONH2.
- Ammonium sulfate has the chemical formula (NH4)2SO4.

2. **Nitrogen Content**:
- Urea contains approximately 46% nitrogen by weight.
- Ammonium sulfate contains about 21% nitrogen by weight.
- Since nitrogen is a crucial nutrient for plant growth, the higher nitrogen content in urea makes it a more effective fertilizer.

3. **Solubility in Water**:
- Both urea and ammonium sulfate are soluble in water, which allows them to be easily absorbed by plants.

4. **Effect on Soil pH**:
- Urea has a pH range of about 3 to 5, making it neutral to slightly acidic.
- Ammonium sulfate can also affect soil pH, but it tends to make the soil more acidic.
- A neutral pH (around 6 to 7) is ideal for most plants, and urea does not significantly alter the soil's acidity, promoting better plant growth.

5. **Conclusion**:
- The primary reason urea is considered a better fertilizer than ammonium sulfate is its higher nitrogen content (46% vs. 21%). This provides more essential nutrients for plant growth.
- Additionally, urea's neutral effect on soil pH helps maintain optimal conditions for plant development.

### Final Answer:
Urea is a better fertilizer than ammonium sulfate because it contains a higher percentage of nitrogen (46% compared to 21% in ammonium sulfate), which is essential for plant growth. Furthermore, urea does not significantly increase soil acidity, making it more suitable for maintaining healthy soil conditions.