Figure 3

Rainfall amount and frequency on NH+4-N, NO–3-N and mineral N stock. Bars and error bars represent means and SD (n = 3). Different letters indicate significant differences in the mean value between different treatments.
Rainfall amount and frequency on NH+4-N, NO–3-N and mineral N stock. Bars and error bars represent means and SD (n = 3). Different letters indicate significant differences in the mean value between different treatments.