Vicia faba and pisum sativum are recommended for rotation of crops because they

Options

A. (a) require small amount of water
B. (b) are cash crops
C. (c) help in nitrogen fixation of soil
D. (d) kill all the harmful insects.

Answer

**Step-by-Step Solution:**

1. **Identify the Plants**: The question mentions Vicia faba (broad bean) and Pisum sativum (garden pea). Both of these plants are legumes.

2. **Understand Legumes**: Legumes are known for their ability to form symbiotic relationships with nitrogen-fixing bacteria, particularly Rhizobium. This means they can convert atmospheric nitrogen into a form that plants can use.

3. **Nitrogen Fixation**: The process of nitrogen fixation is crucial for soil fertility. When legumes are grown, they enrich the soil with nitrogen, which is an essential nutrient for plant growth.

4. **Crop Rotation Benefits**: Rotating crops with legumes like Vicia faba and Pisum sativum can improve soil health and fertility. This practice helps in reducing the need for chemical fertilizers and enhances the overall productivity of the soil.

5. **Conclusion**: Therefore, Vicia faba and Pisum sativum are recommended for crop rotation because they help in nitrogen fixation in the soil, which benefits subsequent crops.

**Final Answer**: Vicia faba and Pisum sativum are recommended for rotation of crops because they help in nitrogen fixation of soil.

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