Which of the following correctly describes the relationship among the several methods available to measure electrical conductivity (EC) of soils?
A) The saturation extract procedure is more accurate than the saturated paste method.
B) The saturated paste method takes more time than the four electrode field sensor.
C) The four electrode field sensor gives EC values about 2x those of the saturated paste method.
D) The saturated paste extract method is the best field method.
E) Electromagnetic induction method requires prongs to penetrate the soil.
B
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