- 업종: 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 ...
To combine two or more molecules of a compound to form a more complex compound with a higher molecular weight.
Industry:Earth science
The extent to which the adsorption complex of a soil is occupied by a particular cation. It is expressed as:
ECP = ((exchangeable cation (cm kg-1 soil))/(cation exchange capacity (cm kg-1 soil)))100
Industry:Earth science
The load per unit area at which an unconfined cylindrical specimen will fail in a simple tension test.
Industry:Earth science
Spodosols that are saturated with water for periods long enough to limit their use for most crops other than pasture or woodland unless they are artificially drained. Aquods may have a histic epipedon, an albic horizon that is mottled or contains a duripan, or mottling or gray colors within or immediately below the spodic horizon.
Industry:Earth science
Texture group consisting of clay loam, sandy clay loam, and silty clay loam textures.
Industry:Earth science
The quantity of certain plant nutrients needed to increase nutrient availability in the soil with the objective of increasing plant growth to a designated level.
Industry:Earth science
The process of converting exchangeable or water-soluble potassium to that occupying the position of K+ in the micas. They are counter-ions entrapped in the ditrigonal voids in the plane of basal oxygen atoms of some phyllosilicates as a result of contraction of the interlayer space. The fixation may occur spontaneously with some minerals in aqueous suspensions or as a result of heating to remove interlayer water in others. Fixed K+ ions are exchangeable only after expansion of the interlayer space.
Industry:Earth science
The inorganic compounds elaborated within a plant to nourish its cells; a frequent synonym for plant nutrients, particularly in the fertilizer trade.
Industry:Earth science
The soil atmosphere; the gaseous phase of the soil, being that volume not occupied by solid or liquid.
Industry:Earth science
