Assessment of Copper and Zinc in Soils of a Vineyard Region in the State of São Paulo, Brazil

Figure 3

Spatial distributions of the Cu and Zn extracted by DTPA and CaCl₂ in natural and acidified samples and the total content of Cu and Zn in natural soil samples. (a) and (c) Cu and Zn extracted by DTPA in natural samples; (b) and (d) Cu and Zn extracted by DTPA in acidified soil samples; (e) and (f) total content of Cu and Zn in soil; (g) Cu extracted by CaCl₂ in natural samples.

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(b)

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(g)