- 行业: Earth science
- Number of terms: 26251
- Number of blossaries: 0
- Company Profile:
An international scientific society that fosters the transfer of knowledge and practices to sustain global soils. Based in Madison, WI, and founded in 1936, SSSA is the professional home for 6,000+ members dedicated to advancing the field of soil science. It provides information about soils in ...
A method of fertilizer or other agrichemical application above, below, or alongside the planted seed row. Refers to either placement of fertilizers close to the seed at planting or subsurface applications of solids or fluids in strips before or after planting.
Industry:Earth science
A mineral soil horizon in which clay, silt and humus derived from an overlying cultivated and fertilized layer have accumulated. The wormholes and illuvial clay, silt and humus, occupy at least 5% of the horizon by volume. The illuvial clay and humus occur as horizontal lamellae or fibers, or as coatings on ped surfaces or in wormholes.
Industry:Earth science
(i) To fill all the voids between soil particles with a liquid. (ii) To form the most concentrated solution possible under a given set of physical conditions in the presence of an excess of the solute. (iii) To fill to capacity, as the adsorption complex with a cation species; e.g., H+-saturated, etc.
Industry:Earth science
A body of rock or sediment that retards but does not prevent the flow of water to or from an adjacent aquifer. It does not readily yield water to wells or springs but may serve as a storage unit for groundwater.
Industry:Earth science
A relatively continuous cliff or relatively steep slope, produced by erosion or faulting, breaking the general continuity of more gently sloping land surfaces. The term is most commonly applied to cliffs produced by differential erosion and it is commonly used synonymously with "scarp. \
Industry:Earth science
(i) A soil with a pH of 8. 5 or higher or with a exchangeable sodium ratio greater than 0. 15. (ii) A soil that contains sufficient sodium to interfere with the growth of most crop plants.
Industry:Earth science
A by-product in the manufacture of steel, containing lime, phosphorus, and small amounts of other plant nutrients such as sulfur, manganese, and iron.
Industry:Earth science
A soil moisture regime defined like aridic moisture regime but used in a different category of the U. S. soil taxonomy.
Industry:Earth science
A boundary between soil and a continuous layer of indurated soil in which iron is an important cement. Contains little or no organic matter.
Industry:Earth science
