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<br />• <br /> <br />Parameter-Units Table 1 <br />(Continued) <br />Procedure-Reference <br /> Total sulfur in Sobek et al. (1978), p. 57-55. 60 mesh sieve. <br /> Sulfur fractionation in a ASTM (1980), 60 mesh seive. <br /> (determined when ABP is less than 0) <br /> <br /> Neutralization potential in tons U.S. Salinity Lab (1969), Method 23c. 60 mesh <br /> CaC0 <br />per 7,000 tons of topsoil seive. <br />' 3 <br />Acid base potential (A8P) in tons Smith et ai. (7974), p. 48-49. 60 mesh seive. <br /> CaC0 <br />per 1,000 tons of topsoil <br /> 3 <br />' Selenium in ppm Fine (7965), Section 80-3.2. <br /> Boron in ppm Bingham (1982), Section 25-9.1, <br />' <br /> Molybdenum in ppm Reisenauer (1965), Section 74-2.3 <br />' • Copper and Zinc in ppm Baker and Amacher (1982), Section 19-3.3. <br /> Sulfate in meq/T ASTM (1980), Part 26. <br />1 <br /> <br />1 <br /> <br /> <br />1 <br /> <br />• <br /> <br /> <br />