Table 3 Maize yield under different improved material treatments. CK: no modified material; TM: maturing agent (ferrous sulfate); TF: fly ash; TO: organic fertilize; TMF: maturing agent + fly ash, TMO: maturing agent + organic fertilizer; TFO: fly ash + organic fertilizer; BD, soil bulk density; SMC, soil moisture content. Different lowercase letters represent significant differences among different improved material treatments in the same indicator.
Treatments | Row number /ear | Kernels/row | Kernels/ear | 100-kernel weight (g) | Theoretical yield (Kg ha−1) |
|---|---|---|---|---|---|
CK | 14.67 ± 1.15b | 34.33 ± 1.53c | 500.22 ± 25.73e | 27.38 ± 0.38d | 7532.48f. |
TM | 14.67 ± 0.58b | 35.67 ± 0.58bc | 516.44 ± 15.79de | 27.93 ± 0.25 cd | 8293.37e |
TF | 15.00 ± 1.00ab | 36.67 ± 1.00bc | 544.67 ± 10.67 cd | 28.44 ± 0.98 cd | 8906.10de |
TO | 15.33 ± 1.15ab | 38.67 ± 1.15a | 593.78 ± 16.80b | 29.59 ± 0.80b | 10,102.46bc |
TMF | 15.33 ± 1.15ab | 37.33 ± 1.52ab | 570.44 ± 8.46bc | 28.69 ± 0.15bc | 9411.57bcd |
TMO | 15.67 ± 0.58ab | 38.67 ± 1.15a | 606.22 ± 9.79b | 28.73 ± 0.99bc | 10,451.27b |
TFO | 16.67 ± 1.54a | 39.33 ± 1.15a | 652.44 ± 13.81a | 30.81 ± 0.16a | 11,558.79a |
