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. **Understanding Organic Farming**: Organic farming is an agricultural practice that emphasizes the use of natural processes and materials. It avoids synthetic chemicals and genetically modified organisms (GMOs).

2. **Key Techniques in Organic Farming**:
- **Crop Rotation**: This involves alternating the types of crops grown in a particular area across seasons to improve soil health and reduce pest buildup.
- **Green Manure**: This refers to cover crops that are grown to be plowed back into the soil to enhance its fertility.
- **Composting**: This is the process of recycling organic matter, such as food scraps and yard waste, into a valuable fertilizer.
- **Biological Pest Control**: This technique uses natural predators or parasites to manage pest populations instead of synthetic pesticides.

3. **Identifying What is Not Included**: The question asks for what is not included in organic farming practices. Among the options, we need to identify which one contradicts the principles of organic farming.

4. **Chemical Fertilizers**: Chemical fertilizers are synthetic substances used to enhance plant growth. They are not permitted in organic farming due to their potential adverse effects on the environment and human health.

5. **Conclusion**: Based on the understanding of organic farming practices, the correct answer to the question "Organic farming does not include" is **chemical fertilizers**.

**Final Answer**: Organic farming does not include chemical fertilizers.

---