Vermicompost is biofertilizer rich in

Options

A. Phosphorus
B. Calcium
C. Nitrogen
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding Vermicompost**: Vermicompost is a type of organic fertilizer produced through the decomposition of organic matter by earthworms. This process is known as vermicomposting.

2. **Process of Vermicomposting**: The process involves the breakdown of organic waste by worms, which helps in enriching the soil with nutrients. The worms consume the organic matter and excrete it in a form that is beneficial for plant growth.

3. **Nutrient Composition**: Vermicompost is particularly rich in essential nutrients that are crucial for plant health. The primary nutrients found in vermicompost include:
- **Nitrogen (N)**: Important for plant growth and development, particularly for leaf and stem growth.
- **Phosphorus (P)**: Essential for root development and flowering.
- **Calcium (Ca)**: Important for cell wall structure and stability, as well as for overall plant health.

4. **Conclusion**: Therefore, vermicompost is a biofertilizer that is rich in nitrogen, phosphorus, and calcium.

5. **Correct Answer**: The correct option is "all of the above" since vermicompost contains all these essential nutrients.

---