soil conservation | protection of soil against erosion or deterioration |
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 |
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 |
permafrost | ground that is permanently frozen |
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 |