Organic farming is raising crops through use of

Options

A. Biofertilisers
B. Manures
C. Resistant varieties
D. All the above

Answer

**Step-by-Step Solution:**

1. **Understanding Organic Farming**: Organic farming is an agricultural practice that focuses on growing crops without the use of synthetic fertilizers and pesticides. It aims to maintain the natural fertility of the soil and promote biodiversity.

2. **Key Components of Organic Farming**:
- **Biofertilizers**: These are natural fertilizers that enhance the nutrient content of the soil through the use of living organisms. They help in the biological fixation of nitrogen and improve soil health.
- **Manures**: Organic farming often utilizes animal manures, which are decomposed animal waste. Manures provide essential nutrients to the soil and improve its structure and fertility.
- **Resistant Varieties**: These are crop varieties that are bred to be resistant to pests and diseases. Using resistant varieties reduces the need for chemical pesticides, aligning with organic farming principles.

3. **Conclusion**: Organic farming incorporates a variety of practices and inputs, including biofertilizers, manures, and resistant varieties, to enhance soil fertility and crop yield without harming the environment.

4. **Final Answer**: Therefore, the correct answer is **D) All the above**.

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