Definition of green manure noun from the Oxford Advanced Learner's Dictionary

 

green manure

 noun
noun
BrE
 
; NAmE
 
[uncountable, countable] Waste and pollution
 
jump to other results
plants that are dug into the soil in order to improve its quality Green manure crops such as alfalfa and mustard are widely used in organic gardening. See related entries: Waste and pollution
See the Oxford Advanced American Dictionary entry: green manure