| soil conservation | protection of soil against erosion or deterioration |
mining
excavation | the act of extracting ores or coal etc from the earth |
excavation digging
dig | the act of digging, there's an interesting excavation going on near Princeton |
| excavation | a hole in the ground made by excavating |
| soil pipe | drain that conveys liquid waste from toilets, etc. |
| Free Soil Party | a former political party in the United States, formed in to oppose the extension of slavery into the territories, merged with the Liberty Party in |
| territory soil | the geographical area under the jurisdiction of a sovereign state, American troops were stationed on Japanese soil |
| soil profile | a vertical section of soil from the ground surface to the parent rock |
dig
excavation
archeological site | the site of an archeological exploration, they set up camp next to the dig |
| soil horizon | a layer in a soil profile |
| land ground soil | material in the top layer of the surface of the earth in which plants can grow (especially with reference to its quality or use), the land had never been plowed, good agricultural soil |
| soil bank | land retired from crop cultivation and planted with soil-building crops, government subsidies are paid to farmers for their retired land |
| soil erosion | the washing away of soil by the flow of water |
dirt
filth grime
soil
stain
grease
grunge | the state of being covered with unclean things |
regur
regur soil | a rich black loam of India |
residual soil
residual clay | the soil that is remaining after the soluble elements have been dissolved |
topsoil
surface soil | the layer of soil on the surface |
| alluvial soil | a fine-grained fertile soil deposited by water flowing over flood plains or in river beds |
| bog soil | poorly drained soils on top of peat and under marsh or swamp vegetation |
| chernozemic soil | a rich black loam of Russia |
desert soil
desertic soil | a type of soil that develops in arid climates |
| soil dirt | the part of the earth's surface consisting of humus and disintegrated rock |
| soil conditioner | a chemical substance used to improve the structure of the soil and increase its porosity, gypsum can be used as a soil conditioner |
| night soil | human excreta used as fertilizer |
| gilgai soil | soil in the melon holes of Australia |
gumbo
gumbo soil | any of various fine-grained silty soils that become waxy and very sticky mud when saturated with water |
leaf mold
leaf mould
leaf soil | soil composed mainly of decaying leaves |
podzol
podzol soil
podsol
podsol soil
podsolic soil | a soil that develops in temperate to cold moist climates under coniferous or heath vegetation, an organic mat over a grey leached layer |
| prairie soil | a type of soil occurring under grasses in temperate climates |
| tundra soil | a black mucky soil with a frozen subsoil that is characteristic of Arctic and subarctic regions |
dirty
soil
begrime
grime
colly
bemire | make soiled, filthy, or dirty, don't soil your clothes when you play outside! |
free-soil
slaveless
non-slave | where slavery was prohibited, a free-soil state |
| soil-building | (of crops) planted to improve the quality of the soil |