Research Article

Mineralization and Crop Uptake of Nitrogen from Textile Manufacturing Wastewater Sludge Cake

Figure 4

Incubation experiment one. Specific rates of carbon dioxide released from incubation of soil with (a) alfalfa and (b) sludge. Treatment codes refer to amendment rates of alfalfa (A100–A800) and sludge (S100–S800) added in the range 100–800 mg N kg−1 dry soil.
273456.fig.004a
(a)
273456.fig.004b
(b)