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Salt, Electrical Conductivity (ED, mmho/cm)
By Mark Majerus (1996). USDA Natural Resources Conservation Service, Bridger Plant Materials Center, Bridger, MT.
Figure 1. Threshold and maximum salt tolerance levels of various forage and crop species. Top barsdenote levels where plant productivity declines, lower bars denote upper limit for plant survival. These values based on composite of research trials at the Bridger PMC (Majerus), U.S. Salinity Laboratory, Riverside, CA (Maas and Hoffman), and the University of Wyoming (Borrelli and Brosz).