Find odd one w.r.t green manures

Options

A. Melilotus
B. Crotalaria
C. Jatropha
D. Trifolium

Answer

### Step-by-Step Solution:

1. **Understanding Green Manures**:
- Green manures are crops that are grown specifically to improve soil health. They are typically grown in rotation with other crops to enhance soil organic matter and structure.

2. **Identifying the Options**:
- To find the odd one out, we need to look at a list of plants or crops that are considered green manures. Common examples include legumes like clover, vetch, and peas.

3. **Analyzing the Families**:
- Most green manures belong to the family Fabaceae (legumes). This family is known for its ability to fix nitrogen in the soil, which is beneficial for subsequent crops.

4. **Identifying the Odd One**:
- If we include Jatropha in the list of options, we can identify it as the odd one out. Jatropha belongs to the family Euphorbiaceae, which is different from the Fabaceae family.

5. **Conclusion**:
- Therefore, the odd one with respect to green manures is Jatropha, as it does not belong to the Fabaceae family like the other green manure crops.

### Final Answer:
The odd one with respect to green manures is **Jatropha**.

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