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 ().