Sodium

Sodium [ Agronomy - Chemistry - Physiology ]
Abbreviation: Na

Dictionary of botanic terminology
index of names


	*Definition*

Exchangeable Sodium Percentage (ESP) [ Agronomy ]
(Also: Exchangeable Sodium fraction)


	*The Exchangeable Sodium Percentage (ESP) is the degree of saturation of the soil exchange complex with sodium; it may be calculated by the formula*

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