Figure 1

Effects of plastic-covered ridge and furrow rainfall concentration (RC) planting combined with mulching on the average soil moisture storage in the 0–100 cm depth from 2007 to 2010 during the corn growth period.
Note: RCSS: 0.08 mm thick plastic film; RCSD: corn straw; RCSB: 8% biodegradable film; RCSL: liquid film; RCSN: bare furrow; CF: conventional flat (control). Different lowercase letters indicate significant differences among treatments. Error bars represent standard deviations.