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<br /> <br /> <br />Table 2.2-I. Chemical and Physical Analysis of Lithologic Samples <br />Parameter Reported as <br />pH Hydrogen ion activity at <br />saturation (paste) <br />Conductivity mmhos/cm @ 25°C <br />Procedure <br />USDA Handbook 60, Method (21a), <br />p. 102. <br />USDA Handbook 60, Method f3o}, <br />p. 84; and Method (4b), pp. 88-90; <br />or ASA mono. No. 9, Pt. 2, pp. <br />937-940. <br />Soluble Ca, meq/I Extraction of Ca, Mg, and Na by <br />Mg, and Na USDA Handbook 60, Method (3a), <br />p. 84. Analysis by atomic absorp- <br />tion spectrophotometry. <br />Sodium-ab- <br />sorption <br />ratio <br />SAR calculated from soluble <br />Ca, Mg 8~ Na concentrations <br />USDA Handbook 60, p. 26. <br />Lime <br />Selenium <br />Boron <br />Nitrate- <br />Ni t rogen <br />Slight, moderate or high <br />ppm to a lower detection <br />limit of 0.05 <br />USDA Handbook 60, Method (23a), <br />p. 105. <br />Extraction by ASA Mono. No. 9, <br />Pt. 2, p. 1122. Analysis by the <br />DAN-Fluorometric method (Leves- <br />que, 1971), or the gaseous Hydride <br />method (US-EPA, 1976), and atomic <br />absorption spectrophotometry. <br />ppm Extraction by ASA Mono. No. 9, <br />Pt. 2, p 1062. Analysis by the <br />Corime method (Standard Methods, <br />1976). <br />ppm Extraction by ASA Mono. No. 9, <br />Pt. 2, Method 84-5.3.3.1, p. 1216, <br />Analysis by nitrogenoxide electrode <br />(Tabatabai, 1974). <br />Molybdenum ppm to lower detection <br />limit of 0.5 <br />Acid-base + tons CaC03 equivalent/ <br />potential (I) 1000 tons of dry material <br />Hydrofluoric Acid Digestion (Meglen, <br />Detection by atomic absorption <br />spectrophotometry. <br />Smith, R. M., et ol., 1974. <br />Exchangeable ESP calculated from CED, Extraction by USDA Handbook 60, <br />sodium per- available & soluble NA, and Methods (18) and (19), pp. 100-101. <br />tentage (2) saturation percentage Analysis by atomic absorption <br />spectrophotometry. <br />2.2-9 <br />