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A growing crop, such as clover or grass, that is plowed under the soil to improve fertility.
1. (Agriculture) a growing crop that is ploughed under to enrich the soil
2. (Agriculture) manure that has not yet decomposed
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.
A leafy crop, such as lupins or mustard, that is grown to dig back into the soil to enrich it.