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Net fluxes of NH4+ (a), NO3− (b), total N (c) and H+ (d) under different proportions of NH4Cl and KNO3. Bars indicate standard errors (n = 8). Different letters indicate significant differences among the treatments according to Duncan’s Multiple Range Test at 5% level. T. a, T. d, and T. m represent T. ascendens, T. distichum and T. mucronatum, respectively.
