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Surface complexation modeling in Variable charge SoilS: charge characterization by potentiometric titration

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Academic year: 2019

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Table 1. Soil characterization (chemical and mineralogical properties) from the 0.00-0.20 m layer of 17  brazilian oxisols
table 2. Soil granulometry, surface area (A),  and organic matter content (om) from the  0.00-0.20 m layer of 17 Brazilian Oxisols
table 3) and was more consistent (lower standard  deviation) among soils than values from hand  calculation
table 5. average intrinsic equilibrium constants  from 17 brazilian oxisols, using the diffuse  layer model (dlm) and the constant capacitance  model (ccm), estimated by fiteQl 4.0 for  three ionic strengths (1,2)

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