green manure

noun Agriculture.

a crop of growing plants, as clover and other nitrogen-fixing plants, plowed under to enrich the soil.
manure that has not undergone decay.

Origin of green manure

First recorded in 1835–45

Words nearby green manure

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British Dictionary definitions for green manure

green manure

noun

a growing crop that is ploughed under to enrich the soil
manure that has not yet decomposed

Scientific definitions for green manure

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.