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Table 9.3-6 <br />• Substitute Soil Suitabilit y Characteristics <br /> Characteristic Suspect Level Source <br /> pH <5.5 or >8.8 CO <br /> Electric <br /> Conductivity >8.0 CO <br /> Acid/Base <br /> Potential <-5.0 CO <br />SAR NM <br />>18.0 <br />>16 <br />>19 <br />Texture >30$ very fine CO <br />• sand <br />Boron >5.0 CO <br />Selenium >0.1 CO <br />Units <br />standard units <br />mmhos/cm <br />tons CaC03equivalent/1,000 <br />tons <br />calculation based on <br />texture: <br />sandy loam and coarser <br />loams and clay loam <br />greater than 90 percent <br />clay <br />by wt. for soils with the <br />following textures: clay, <br />silty clay, sand, and sandy <br />loam <br />ppm <br />ppm (only if pH >8.5) <br />C <br />Renewal-3 9.3-14 June 13, 1997 <br />