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

Electrokinetic (zeta) potential

Earth science; Soil science

The electrical potential at the surface of the shear plane between immobile liquid attached to a charged particle and mobile liquid further from the particle surface.

Ammoniation

Earth science; Soil science

The process of introducing various ammonium sources into other fertiliser sources forming ammoniated compounds. Ammonium polyphosphates and ammoniated superphosphate are ammoniated compounds.

Particle size

Earth science; Soil science

The effective diameter of a particle measured by sedimentation, sieving, or micrometric methods.

Crystal structure

Earth science; Soil science

The orderly arrangement of atoms in a crystalline material.

Distribution coefficient (Kd)

Earth science; Soil science

The distribution of a chemical between soil and water.

Fertiliser requirement

Earth science; Soil 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.