Multifunctional Superabsorbent Polymer under Residue Incorporation Increased Maize Productivity through Improving Sandy Soil Properties

Figure 2

Effects of multifunctional SAP doses on soil water storage (0–1.0 m) during the maize growing season in 2016–2017. ; ; ; ; and . Horizontal bars represent significant difference at the 0.05 probability level according to the least significant different test (LSD 0.05).