soils, mulch, loam, silt, compost, gravel, vegetation, dirt, windrows, sediment, sod, manure, soil erosion, shrubs, cropland, wetlands, compost pile, farmland, spadeful, humus, chippings, compaction, marram grass, silage, frost heaving, weeds, hardpan, asphalt, sphagnum moss, herbage, sand, roadbeds, caliche, bottomland, streambed, alluvium, subgrade, pastureland, sphagnum, chicken manure, grasses, disking, perennial ryegrass, marl, berm, peat moss, floodplain, discing, nitrogen, cultch, limestone, swale, fly ash, vermiculite, fertilizer, groundwater, stover, pachysandra, midden, subbase, shelterbelts, grassland, clayey, fescue grass, trees, buffel grass, landscaping, arundo, sedimentation, retaining wall, flagstones, swales, rye grass, pumice, trowel, pasture, regolith, swards, compost heap, earthworks, riverbed, subsoil, excavation, flowerbeds, forbs, corm, pavers, nutrients, tailings, junipers, flood plain, thatch, stolons, aquifer, macadam, perlite, evergreens, greenery, bermuda grass, moisture, posthole digger, backfill, soil, newsprint, loams, mortar, alluvial, guano, peat, loess, rainwater

subsoil, undersoil

dirt, soil

surface soil