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. 2017 Apr 6;8:512. doi: 10.3389/fpls.2017.00512

FIGURE 4.

FIGURE 4

The soil water storage dynamics in 0–60, 60–120, and 120–200 cm layers with different film mulching treatments during maize growing season in 2013–2014 at the Dryland Agricultural Research Station, Pengyang County, China. (A–C) Soil water storage at 0–60 (A), 60–120 (B), and 120–200 (C) cm layers, respectively. CK, the control, conventional flat planting without plastic film mulch; PM, flat planting with maize rows (60 cm spacing) on plastic film mulch (70 cm wide); FCM, furrow planting of maize (60 cm spacing), separated by consecutive plastic film-mulched ridges (each 50 cm wide and 15 cm tall); FLSM: furrow planting of maize (60 cm spacing), separated by alternating large and small plastic film-mulched ridges (large ridges: 70 cm wide and 15 cm tall, small ridges 50 cm wide and 10 cm tall); FLM, furrow-flat planting of maize (60 cm spacing) with a large plastic film-mulched ridge (60 cm wide and 15 cm tall) alternating with a flat plastic film-mulched space (60 cm wide). Data are means ± SD (n = 3). Bars with different lower case letters indicate significant differences among treatments for each year (Tukey HSD test, p < 0.05).