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countable and uncountable, plural mulches
(agriculture, horticulture) Any material used to cover the top layer of soil to protect, insulate, or decorate it, or to discourage weeds or retain moisture. quotations examples
An interim report by investigators from the Rail Accident Investigation Branch found extensive evidence of crushed leaf mulch on the railhead at many sites on the approach to Salisbury Tunnel Junction.
2022 March 9, Paul Clifton, “Network News: Salisbury crash: slippery rails caused by autumn leaves”, in RAIL, number 952, page 12
third-person singular simple present mulches, present participle mulching, simple past and past participle mulched
(agriculture) To apply mulch. examples
(agriculture) To turn into mulch. examples