Research Article

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

Figure 3

Incubation experiment one. Relation of N added to total mineral N released after 28 days for incubations of sludge and alfalfa with soil calculated with subtraction of mineral N in control incubations. The fitted regression line of for the data pooled across sludge and alfalfa amendments is significant ( ).
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