Organic farming does not include :-

Options

A. Green manures
B. Chemical fertilizer
C. Crop rotation
D. Compost and farmyard manures

Answer

**Step-by-Step Solution:**

1. **Understand Organic Farming**: Organic farming is a method of farming that avoids the use of synthetic chemicals, fertilizers, and pesticides. It focuses on natural processes and materials to enhance soil health and crop productivity.

2. **Analyze the Options**: The options provided are:
- Green manure
- Chemical fertilizer
- Crop rotation
- Compost
- Farmyard manures

3. **Evaluate Each Option**:
- **Green Manure**: This is a type of cover crop that is grown to be turned into the soil to improve its fertility. It is a natural practice and is included in organic farming.
- **Chemical Fertilizer**: These are synthetic fertilizers that are manufactured and used to enhance plant growth. This is not allowed in organic farming.
- **Crop Rotation**: This is the practice of growing different crops in the same area in sequential seasons. It helps in maintaining soil health and is a part of organic farming.
- **Compost**: This is organic matter that has decomposed and is used to enrich soil. It is a key component of organic farming.
- **Farmyard Manure**: This is organic material derived from animal waste and is used to improve soil fertility. It is also part of organic farming.

4. **Identify the Correct Answer**: Since organic farming excludes synthetic chemicals, the option that does not belong in organic farming is **Chemical Fertilizer**.

5. **Conclusion**: The correct answer to the question "Organic farming does not include" is **Chemical Fertilizer**.

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