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<br /> <br />Table 1 <br />(Continued) <br />Parameter-Units Procedure-Reference <br />total sulfur in C Sobek et ai. (1978), p. 51-55. 60 mesh sieve. <br />Sulfur fractionation in 7 <br />(determined when ABP is Iess than O) <br />ASTM (1980), 60 mesh seive_ <br />Neutralization potential in tons <br />CaC03 per 1,000 tons of topsoil <br />Acid base potential (ABP) in tons <br />CaCA3 per 1,000 tons of topsoil <br />Selenium in ppm <br />Boron in ppm <br />Molybdenum in ppm <br />Copper and Zinc in ppm <br />Sulfate in meq/1 <br />U.S. Salinity Lab (1969), Method 23c. 60 mesh <br />seive. <br />Smith et al. (1974), p. 48-49. 60 mesh set ve. <br />Fine (1965), Section 80-3.2. <br />Bingham (1982), Section 25-9.1. <br />Reisenauer (1965), Section 74-2.3 <br />Baker and Amacher (1982), Section 19-3.3. <br />ASTM (1980), Part 26. <br /> <br />