Fig. 3
From: Inoculation with Azospirillum brasiliense increases maize yield
Effects of N fertilization treatments without N (W N), inoculation with Azospirillum brasiliense (I), N fertilization as urea at sowing and at topdress (N + N), and seeds inoculation + N fertilization at sowing (I + N) on first cob insertion height (FCIH) (a), plants height (PH) (b), grain yield (GY) (c), N leaves concentration (NL) (d), and N grains concentration (NG) (e) in 2014/2015 season. Different letters indicate differences (p < 0.05) among N fertilization treatments by Tukey test