Question

what do you understand by a green manure​

Answer 1

Hey mate,   A fertilizer consists of growing plants that are ploughed back into the soil.  Hope it will help you

Answer 2

$\boxed{Explained\:Answer}$

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★Green manure is defined as a crop or plant that is grown and then intentionally plowed under to improve the underlying soil.

★Green manure is sometimes alternatively called a cover crop, but there is a key difference.