Figure 1
(A) Soil NH4+-N and (B) NO3−-N concentrations under fertilization by N with Si (N + Si) and without Si (N-only) expressed as 3-year averages (2011–2013, N = 6).
Figure 1 | Scientific Reports
(A) Soil NH4+-N and (B) NO3−-N concentrations under fertilization by N with Si (N + Si) and without Si (N-only) expressed as 3-year averages (2011–2013, N = 6).
