JEQ Journal of Natural Resources and Life Sciences Education
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Figure 5


Fig. 5. Mass transfer velocity (Vf) of (A) NH4+ in ditches, (B) PO43– in ditches, (C) NH4+ in canals, and (D) PO43– in canals; error bars represent one standard error. No net uptake of PO43– was measured on 3 Sept. 2003.





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