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• Table 6-3-2 <br />Parameter, Procedure and Reference List <br />for Peabody Central Laboratory, <br />June 1979 and 1980 <br />Parameter Procedure/Reference <br />pH Determined on a saturated soil paste. USDA <br />Handbook 60, 1969 - Diagnosis and Improvement <br />of Saline and Alkali Soils, Method 21a, p. <br />102. <br />Conductivity Determined on a saturated paste extract. <br />USGA Handbook 60, F4ethod 3a, p. 84. <br />Saturation Percentage USDA Handbook 60, Plethod 2, p. 84 and Method <br />27b, p. 107. <br />Water Soluble Na, Ca, h1g Determined on a saturated paste extract using <br />AA Analysis. USDA Handbook 60,i~ethod 3a, p. <br />84. <br />SAR. Calculated from IJa, Ca and Mg values, USDA <br />Handbook 60, p. 26. <br />ESP Calculated from SAR values, USDA Handbook 60, <br />p. 26. <br />Phosphorus Sodium bicarbonate extraction and AA <br />Analysis, Olsen, et al., 1954 and USDA <br />Circular 939. <br />Potassium Ammonium Acetate extraction and AA Analysis, <br />Sirns, 1973, Laboratory Experiences in Soil <br />Science, p. 20-22, 41. <br />Sulfate Determined on a saturated paste extract. <br />USDA Handbook 525, 1977, Laboratory Methods <br />Recommended for Chemical Fnalysis of ;dined <br />Land Spoils and Overburden in Western United <br />States, Ptethod 1, p. 22-2~. <br />Particle Sizel Hydrometer method. 6ouyoucos, 1962. <br />Agronomy Journal Volume 54, p. 464-465. <br />• Very Fine Sand Dry Sieve Analysis technique. ASA Monograph <br />k9, Part 1, 1965, Method 43-4.3.4, p. <br />555-556. <br />6-3-5 <br />