Soil science

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

Infiltration rate

Earth science; Soil science

The volume of water entering a specified cross-sectional area of soil per unit time.

Plant food

Earth science; Soil science

The inorganic compounds elaborated within a plant to nourish its cells; a frequent synonym for plant nutrients, particularly in the fertiliser trade.

Soil air

Earth science; Soil science

The soil atmosphere; the gaseous phase of the soil, being that volume not occupied by solid or liquid.

Crushing strength

Earth science; Soil science

The force required to crush a mass of dry soil or, conversely, the resistance of the dry soil mass to crushing. Expressed in units of force per unit area (pressure).

Critical nutrient concentration

Earth science; Soil science

The nutrient concentration in the plant, or specified plant part, above which additional plant growth response slows. Crop yield, quality or performance are less than optimum when the concentration ...

Guano

Earth science; Soil science

The decomposed dried excrement of birds and bats, used for fertilizer.

Hydrology

Earth science; Soil science

The science dealing with the distribution and movement of water: * agrohydrology - The science dealing with the distribution and movement of rainfall and/or irrigation water and soil solution to and ...