Research Article

An Initial Investigation into the Use of a Flux Chamber Technique to Measure Soil-Atmosphere Gas Exchanges from Application of Biosolids to UK Soils

Figure 9

Measured nitrogen concentrations. The solid line indicates the mean, and the dashed line 3 standard deviations from the mean.
957181.fig.009a
(a) Site 1: pH 6.7
957181.fig.009b
(b) Site 2: pH 4.56
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(c) Site 3: pH 5.5