单词	subsoil
释义	subsoil /ˈsʌbsɔɪl / noun [mass noun] The soil lying immediately under the surface soil.Wetland creation attempts are often initiated by the removal of upland surface soil materials exposing mineral subsoil strata.... Heavy clay subsoil or sandy soil with low fertility must be improved if roses are to be grown successfully in them. When digging out the bed, discard any heavy, tight subsoil and save the topsoil. verb [with object] (usually as noun subsoiling) Plough (land) so as to cut into the subsoil: to gain maximum benefit from subsoiling this operation needs to be done when the lower levels of the soil are relatively dry... Studies in the past showed that subsoiling clay soil in the spring does not improve cotton harvests.
随便看	Mandelshtam Mandelstam, Osip mandement Mandevilla Mandeville, Sir John mandible mandibular mandibulary mandibulate mandibulated mandilion Manding Mandingo Mandinka mandir mandlen mandocello mandola mandolin mandoline mandolinist mandolino mandoor mandor mandora

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