Name two plants which yield green manure.

Explanation

### Step-by-Step Solution

1. **Understanding Green Manure**:
- Green manure refers to plants that are grown specifically to be incorporated back into the soil to improve its quality. These plants enhance soil fertility by adding organic matter and nutrients.

2. **Characteristics of Green Manure Crops**:
- Green manure crops are typically fast-growing and are often part of the leguminous family, which is known for its ability to fix nitrogen in the soil.

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