Figure 2. Variation in soil water storage in the 0–200 cm soil layers at six maize growth stages under different treatments in 2015 and 2016.
L, low planting density (A in 2015 and D in 2016); M, medium planting density (B in 2015 and E in 2016); H, high planting density (C in 2015 and F in 2016); NI, no irrigation; IV, irrigation at the 11-leaf stage; IS, irrigation at the silking stage; IVS, irrigation at the 11-leaf and silking stages. SW, V6, V11, SK, FL and MT means sowing stage, six-leaf stage, 11-leaf stage, silking stage, filling stage, and maturity stages, respectively; Vertical bars represent the LSD values at p = 0.05 level.
