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Table 5 Salinity ratings for soil based on electric conductivity

From: Soil characterization and heavy metal pollution assessment in Orabi farms, El Obour, Egypt

Rating EC (μS/cm) Effect on plants
Non-saline 0–2000 Salinity effects are mostly negligible
Slightly saline 2000–4000 Yields of very sensitive crops may be restricted
Moderately saline 4000–8000 Yields of many crops restricted
Highly saline 8000–16,000 Only tolerant crops yield satisfactory
Extremely saline > 16,000 Only a few very salt-tolerant crops yield satisfactory