Alkali soil
Definition of Alkali soil
| 1. | Any one of various soils found in arid and semiarid regions, containing an unusual amount of soluble mineral salts which effloresce in the form of a powder or crust (usually white) in dry weather following rains or irrigation. The basis of these salts is mainly soda with a smaller amount of potash, and usually a little lime and magnesia. Two main classes of alkali are commonly distinguished: black alkali, which may be any alkaline carbonate, but which practically consists of sodium carbonate (sal soda), which is highly corrosive and destructive to vegetation; and white alkali, characterized by the presence of sodium sulphate (Glauber's salt), which is less injurious to vegetation. Black alkali is so called because water containing it dissolves humus, forming a dark-colored solution which, when it collects in puddles and evaporates, produces characteristic black spots. |
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Alish
Alisphenoid
Alitrunk
Aliturgical
Aliunde
Alive
alive and kicking
aliveness
Alizari
Alizarin
Alka-seltzer
Alkahest
Alkalamide
Alkalescence
Alkalescent
Alkali
Alkali albumin
Alkali flat
Alkali green
Alkali metal
-Alkali soil-
Alkali waste
alkalic
Alkalifiable
Alkalify
Alkalimeter
Alkalimetric
Alkalimetry
Alkaline
Alkaline earths
Alkaline metals
Alkaline reaction
alkaline-loving
Alkalinity
Alkalious
Alkalizate
Alkalization
Alkalize
Alkaloid
alkalosis
alkalotic
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