Question

Saline alkali soils have

A EC> 4 dS/m, ESP> 15 %, pH <8.5
B EC> 4 dS/m, ESP<15 %, pH <8.5
C EC<4 dS/m, ESP> 15 %, pH >8.8
D EC< 4 dS/m, ESP< 15 %, pH >8.5
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