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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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