18 Terms
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Soil science
That science dealing with soils as a natural resource on the surface of the earth including soil formation, classification and mapping; physical, chemical, biological, and fertility properties of soils per se; and these properties in relation to the use and management of soils.
Industry: Earth science
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Soil science
Vegetative cell
Earth science; Soil science
The growing or feeding form of a microbial cell, as opposed to a resistant resting form.
Lattice energy
Earth science; Soil science
The energy required to separate the ions of a crystal to an infinite distance.
Soil water percolation
Earth science; Soil science
The downward movement of water through soil. Especially, the downward flow of water in saturated or nearly saturated soil at hydraulic gradients of the order of 1. 0 or less.
Soil mechanics and engineering
Earth science; Soil science
The branches of engineering and soil science that deal with the effect of forces on the soil and the application of engineering principles to problems involving the soil.
Bulk length
Earth science; Soil science
The total length, including solid particles and pores, of a straight-line path through the soil; the length counterpart of bulk volume or bulk area.
Fixation
Earth science; Soil science
The process by which available plant nutrients are rendered less available or unavailable in the soil. Not to be confused with dinitrogen fixation.
Liebig's law
Earth science; Soil science
The growth and reproduction of an organism is dependent on the nutrient substance that is available in minimum quantity.
