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

Ion hydration

Earth science; Soil science

Orientation and bonding of water molecules to the surface of an ion; example:

Soil separates

Earth science; Soil science

Mineral particles, <2. 0 mm in equivalent diameter, ranging between specified size limits. The names and size limits of separates recognised in the USA are: very coarse sand (Prior to 1947 this ...

Colony forming units (CFU)

Earth science; Soil science

Number of microorganisms that can form colonies when cultured on artifical media using spread plates or pour plates: an indication of the number of viable, culturable microorganisms in a soil or ...

Phosphate

Earth science; Soil science

In fertiliser trade terminology, phosphate is used to express the sum of the water-soluble and the citrate-soluble phosphoric acid (P2O5); also referred to as the available phosphoric acid (P2O5).