| 1. | a crop of growing plants, as clover and other nitrogen-fixing plants, plowed under to enrich the soil. |
| 2. | manure that has not undergone decay. |
| green manure n. A growing crop, such as clover or grass, that is plowed under the soil to improve fertility. |
| green manure
A growing crop, such as clover or grass, that is plowed under the soil to improve fertility. Green manure can also reduce erosion and, if the crop is leguminous, add nitrogen to the soil. |