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IATY OF TRACNO <br /> Table 7 <br /> Preapplication Report: 93-94 <br /> Reported Ranges of Soil Properties <br /> Naturally Occurring Reported Buffer <br /> Levels in Soils Powers for Soils <br /> Maximum Minimum <br /> Constituent (mg/kg) (mg/kg) Maximum Minimum <br /> Cadmium 7 0.01 2272(a) 423 (a) <br /> Copper 100 2 90 (b) 30 (b) <br /> Lead 3000 0.1 2272 (c) 5 (c) <br /> Nickel 1000 5 2272 (c) 5 (c) <br /> Zinc 300 10 100 d) 5 d) <br /> (a) Kuo, S. 1990. Cadmium Buffering Capacity and Accumulation in Swiss <br /> Chard in Some Sludge-Amended Soils. Soil Sci. Soc. Am. J. 54:86-91. <br /> (b) McLaren, R.G. , and D.V. Crawford. 1973. Studies on Soil Copper. II. The <br /> Specific Adsorption of Copper by Soils. J. Soil Sci. 24:443452. <br /> (c) Data unavailable, took highest max and lowest min from other elements. <br /> (d) Barber, S.A. 1984. Soil Nutrient Bioavailability: A Mechanistic Approach. <br /> John Wile and Sons. New York. <br /> Telephone 209/836-1650 3900 Holly Drive Tracy, California 95376 <br />